Sudo scare part Deux, as another flaw is found by an Apple security expert
(Image credit: Shutterstock)
Linux and macOS systems have been hit by a nasty little bug in the Sudo utility, although the good news is it has already been patched.
Sudo is a tool that provides specified user permission above their normal levels, including root (administrative) access, but by leveraging this security flaw, it’s possible a low-privileged user (or malware) could get unauthorized root access, and thus potentially wreak all sorts of havoc on the host system.
The fresh vulnerability (codenamed CVE-2019-18634) relates to Sudo incorrectly handling memory operations when the ‘pwfeedback’ option is enabled in the Sudoers configuration file, as The Hacker News reports. Essentially, when a password is requested, this security measure can be bypassed via a large input that triggers a buffer overflow.
Now, it’s often the case that pwfeedback isn’t enabled by default, but some operating system does have it active off-the-bat in Sudo – for example Linux Mint.
Further note that the buffer overflow flaw only affects Sudo versions previous to 1.8.26. Sudo has already been patched to defend against the exploit with version 1.8.31 (versions 1.8.26 onwards are safe anyway, as the result of another previous change – even though the bug is still present, it can’t actually be leveraged).
Apple also released a patch for macOS on January 28 to fix the problem, and it’s available for macOS High Sierra 10.13.6, Mojave 10.14.6, and Catalina 10.15.2.
Apple will likely offer this Pro Mode option as a way to temporarily boost the performance of its select MacBook models when the user does not care about fan noise or battery life. This should come in handy for power users who use their MacBook Pro for heavy processing work. The code mentions apps “may run faster” at the cost of decreased battery life and increased fan noise.
There is no guarantee that the Pro Mode will arrive on macOS Catalina 10.15.3. However, the code hints at a possibility. Apple has also made some improvements to multi-stream video editing for the 16-inch MacBook Pro. Furthermore, the update also comes with Pro Display XDR optimizations.
macOS Catalina 10.15.3 release notes read as follows,
The macOS Catalina 10.15.3 update improves the stability, reliability, and security of your Mac, and is recommended for all users.
Optimizes gamma handling of low gray levels on Pro Display XDR for SDR workflows when using macOS
Improves multi-stream video editing performance for HEVC and H.264 encoded 4K video on the 16-inch MacBook Pro (2019)
It looks like Apple is bringing in new features and improvements to please power users. The Pro Mode will expectedly offer power on the tap while improvements to multi-stream video editing will help users to manage their demanding workflow.
Thanks to its new Chromium underpinnings, Microsoft’s new Edge browser can now handle Chrome extensions on Windows 10 and macOS.
Based on the same engine that drives Google’s Chrome browser, Microsoft’s new Edge browser is now available for Windows and macOS. A year in the making, the new Microsoft Edge browser will work with websites and not deal with the compatibility issues that browsers with a smaller share of the market can face.
More specifically, Microsoft Edge is based on Chromium, an open-source project that has a lot in common with Google Chrome. As a result, Microsoft Edge can use the expansive collection of browser extensions available from Google’s Chrome Web Store. With this first public release of Edge, you’ll need to grant the new browser access to Chrome extensions before you can install them.
Don’t confuse this new Microsoft Edge browser that depends on the Chromium project with the previous version. The original Edge was built on Microsoft’s own browser engine.
Keep reading for how to install the new Edge browser, find Microsoft’s collection of browser add-ons in its own store, and install even more extensions from the Chrome Web Store.
How to install and set up Microsoft Edge
For now, if you want to move to the new Edge browser, you’ll need to download it. Over the coming months, Microsoft will push out the new browser to customers, starting in the next few weeks with those who are part of the Windows Insiders program. If you have the original version of Edge or the Edge beta on your machine, the new version won’t overwrite the older one. Here’s how to install Edge.
2. Tap Download, tap Acceptanddownload on the next screen, and then tap Close.
3. If it doesn’t automatically launch, open the installation file in the Downloads folder and then tap through the installer screens to install Edge.
4. Once installed, Edge will automatically startup. If you already have the Chrome browser installed, Edge will ask if you want to import your bookmarks, autofill data, and history from Google’s browser or start from scratch. If you decide to start from scratch, you can import your browser data later.
You can also tap the Customize import button at the bottom of the import window to bring in your data from Firefox.
Tap Allow to let Edge import your data.
5. Next, choose the look of the browser — Inspirational, Informational or Focused — and tap Next.
6. If you have multiple devices running the new Edge, on the next screen, the browser will ask if you want to sync your data across devices. Tap the toggle for Yes or No and then tap Next.
7. Finally, toggle Yes or No depending on if you want Microsoft to personalize your browsing experience and then tap Confirm.
Install Edge extensions from the Microsoft Store
Once you’ve installed Edge, you can add extensions, like Grammarly or Honey. Here’s how to find extensions on the Microsoft Store.
1. In Edge, tap the three-dot menu up in the right-hand corner and tap Extensions.
2. Tap the link to the Microsoft Store. You can either search for a favorite extension or browse by categories, such as entertainment or shopping.
3. Tap the extension you want, tap Get, and then confirm you want to add the extension to Edge. Once added, you can manage it on the Extensions page.
Install Edge extensions from the Google Chrome Web Store
While Microsoft’s store has a nice selection of browser add-ons, to see the full range of extensions you can use, you’ll need to allow Edge to access the Chrome Web Store. Here’s how.
1. Tap the three-dot menu up in the right-hand corner again and tap Extensions.
2. In the bottom-left corner, toggle on Allow extensions from other stores and then tap Allow.
Broker the best cloud deals possible with these fantastic providers
(Image credit: Pixabay)
Cloud brokers allow to your mix and match – and manage – a range of cloud services under a single platform. The aim is to simplify the process of managing hybrid clouds while also ensuring the services remain optimized.
While there is an increasing range of cloud services available, it often pays to mix and match, not least to avoid vendor lock-in. Additionally, services from the different providers might offer potential benefits, so getting them to work together means a more efficient IT service management.
And because of the scale of data management that can be involved, being able to centralize everything into a single infrastructure with its own dashboard can make everything so much easier to manage and maintain.
Therefore here we’ll list some of the biggest and best in cloud brokers solutions for mixing and matching your IT services for hybrid clouds.
AWS Service Broker is an open source service provided by Amazon that allows its services to integrate directly with third-party cloud services, such as Red Hat OpenShift, Pivotal Cloud Foundry, SUSE Cloud Application Platform and Kubernetes.
The result is a single platform from which multiple cloud services can be managed, whether public, private, or hybrid clouds, which don’t need to work with the AWS API. However, the full range of AWS CloudFormation templates are available to customize as required to manage infrastructure and resources.
Other AWS services can also be used, such as for relational databases, storage, and querying (AWS RDS, AWS S3, and AWS SQS) for example, as well as a range of other supported AWS features.
However, the service broker ensures best practices when working with both AWS and third party clouds for availability and retention, and again templates can be configured for individual needs.
The overall result is a unified interface that allows AWS services and third-party services to be more easily managed.
AWS has three different pricing models; ‘Pay as you Go’, ‘Save when you reserve’ and ‘Pay less using more’. To get prices for all these you need to contact Sales directly.
However, AWS provides a free tier. This offers users certain services for 12-months. After that you have to choose to sign up for any of the plans above or to cancel your AWS subscription.
Broker managed cloud services from multiple suppliers
(+) Better IT management
(+) Retain compliance
(+) Cost and efficiency savings
(-) Initial outlay
IBM may offer its own cloud platform, but they also offer managed cloud brokerage services to allow you to bring together cloud services from multiple suppliers under one roof.
With the IBM Cloud Brokerage Managed Services you can play, design, and manage all cloud models from a single platform, while still ensuring compliance. Though the migration of apps and optimization across all your services you should be able to minimize costs.
A key aim it to help allow managers and executives bring their IT infrastructure under control in a single cloud platform to reduce hybrid sprawl, especially when different departments may have their own cloud operations for CRM, sales, or ecommerce, which can otherwise complicate the overall IT environment.
While initial costs may be initially higher, operational savings should easily outweigh these. Additionally, IBM provides cost management tools with built-in analytics to help improve efficiency further.
Bringing together all your IT needs onto a single platform should provide added benefits in terms of easier management, not least having a clearer idea of needs, services, and costs, and being better able to balance these, without having to drop needed tools and processes.
Overall, IBM expect that half of all enterprises will move into cloud brokerages over the coming years, not least the better balance the interests of developers, line-of-business executives, and IT administrators.
Swedish based Cloudmore slots all your desired cloud-based services together as neatly as an IKEA flatpack
(+) PAYG pricing
(+) Intuitive interface
(+) Easy API integration
Cloudmore is a Swedish company with offices in Estonia, the UK and US. They were founded in 2007. The solution works to bring all cloud-based IT services together into one unified platform
Cloudmore is delivered as a SaaS service. There is no hardware to buy or initial set-up costs. Everything you need from a brokerage solution is available from the get-go except for add-ons you might decide to include as you progress.
The interface is simple to use and easy on the eye. It is intuitive ensuring usability for all clients.
Cloudmore’s Brokerage platforms is based on a pay-as-you go pricing structure. The solution charges for the management of services which are usually paid for by the vendor. Users also have the option to purchase add-ons.
Cloudmore’s API’s easily integrate into your systems. This allows for end-to-end automation. Microsoft Online Services is part of their many integrations.
Users need to contact Cloudmore directly for more information and a quote
Unjam your IT needs with a managed broker platform
(+) Supports multiple languages and currencies
(+) Flexible and power platform
(+) Good variety of options
Jamcracker Cloud Services Brokerage also offers organizations the opportunity to manage diverse cloud services from a single platform. This brings with it the ability to unify public, private, and hybrid cloud operations and deliver them both across departments and also to customers.
This can involve unifying SaaS, IaaS, and PaaS needs, along with any other virtualizations, and Jamcracker provides support for multiple languages, currencies, and time zones.
As above, the expectation is that simplifying cloud IT infrastructure should result in positive cost and efficiency savings, but by being a cloud services broker (CSB) companies can look to not simply apply these benefits internally but also resell their own value-added services – something Jamcracker is keen to develop with its customers as required.
Overall, Jamcracker has positioned itself as a key provider for unifying cloud operations and management, while also being able to offer cloud brokerage services that enterprise business can take in house and repackage for use among its own clients or suppliers.
Boomi’s support for various cloud models and easy integration makes it ideal for most companies
(+) Supports multiple cloud architectures
(+) Easy integration
(-) Steep learning curve
Dell Boomi is a business acquired by Dell in 2010, which specializes in cloud-based integration, API management and Master Data Management. Major clients include Micorsoft Azure, MapAnything and Novartis.
Users can build on-premise to on-premise, cloud-to-cloud and hybrid integrations. The interface gives you access to the tools needed to build end-to-end workflows.
Dell Boomi has a handy drag and drop feature which makes integration simpler. It is an enterprise integration Platform as a Service. Users can build, deploy and manage all integrations seamlessly.
Boomi ‘Suggest’ allows users to show others in the community ideas for integrations and receive feedback.
Users can submit data on integration processes to ‘AtomSphere’ to test against future changes. Boomi is a multi-tenant platform which manages all your data management software. They have connections to multiple providers such as MailChimp, GoogleCloud and Slack.
Altogether, Dell Boomi aims to accelerate the delivery of integration projects while ensuring management, optimization, and reliability are maintained.
The new macOS Catalina beta can be downloaded through the Software Update mechanism in the System Preferences app after installing the appropriate profile from the Developer Center.
We don’t yet know what improvements the second update to macOS Catalina will bring, but it most likely focuses on performance improvements, security updates, and fixes for bugs that weren’t able to be addressed in the macOS Catalina 10.15.1 update.
We didn’t find any major new changes worth noting in the first two betas, but we’ll update this article should anything notable be found in the third beta.
macOS Catalina is a major update that does away with iTunes in favor of new Music, Podcasts, and TV apps. It also nixes support for 32-bit apps, adds a new Find My app, brings a new Photos interface, and includes multiple privacy enhancements and other app refinements.
IBM draws on its own expertise, enlists subsidiary Red Hat, customer Bank of America to build what it says will be “the world’s first financial services-ready public cloud.”
IBM seems to be playing to its strong suit with the announcement that it has been collaborating with Bank of America to create a cloud dedicated to meeting the special needs of financial services institutions and their suppliers. According to Big Blue, the “financial services-ready” public cloud, which it says is the first of its kind, has been designed to help address the requirements of financial services institutions for regulatory compliance, security, and resiliency.
Although IBM’s cloud seems to be stuck in a third-place tie with Google for market share, its position is buoyed by the fact it doesn’t compete directly with the much larger full-service market leaders — Amazon Web Services and Microsoft Azure — but has been concentrating on AI, with Watson, and the burgeoning hybrid and multi-cloud market.
In the later arena, it not only brings decades of experience to the table, bolstered by its recent acquisition of open source cloud leader Red Hat, but a loyal customer base of enterprise customers, many of whom have not yet embraced the cloud native technologies that are now considered essential for successful business operations.
The new fintech-focused cloud will operate as part of IBM’s existing public cloud and appears to follow the company’s inclination to stay in familiar territory. IBM can draw on its experience working with major financial institutions (by its estimation it counts 47 Fortune 50 companies as well as the world’s 10 largest financial institutions as customers), and can enlist aid and advice from financial sector customers who stand to benefit from a fintech cloud, as the collaboration with Bank of America indicates.
“This is one of the most important collaborations in the financial services industry cloud space,” Bank of America’s chief operations and technology officer, Cathy Bessant, said in a statement. “This industry-first platform will allow Bank of America to use the public cloud, putting data security, resiliency, privacy, and customer information safety needs at the forefront of decision making. By setting a standard that addresses the concern of hosting highly confidential information, we aim to drive the public cloud to a safety level that is unmatched.”
IBM says that Promontory Financial Group, the financial consulting firm it acquired in 2016 — the New York Times called it “one of the top financial consulting firms to emerge after the global financial crisis of 2008” — is involved in the project, as is Red Hat, which supplies OpenShift as IBM public cloud’s primary Kubernetes environment. IBM indicated that OpenShift will be harnessed in the financial cloud.
According to IBM, the controls the financial services cloud will put in place will free independent software vendors and Software-as-a-Service providers to focus on their core offerings, adding that ISV or SaaS providers will have to demonstrate compliance with the platform’s policies.
“The financial services-ready public cloud represents an ongoing focus from Bank of America, IBM, and Promontory to help develop a technology ecosystem where regulations can be addressed,” Bridget van Kralingen, IBM’s senior VP of global industries, clients, platforms, said in a statement. “Together we plan to help our customers address their ongoing compliance requirements, coupled with highly scalable, standardized capabilities that will be built to help serve today’s modern financial services industry.”
A new iOS 13 update has landed on your iPhone to fix an issue that you’ve probably experienced after updating to iOS 13.2.
That update brought an issue where apps would often close in the background when you switch to another app, making multi-tasking difficult, but the latest iOS 13.2.2 upgrade is designed to fix this issue.
We’ve yet to try out the update so we can’t confirm if the issue is fixed, but the change is clear within Apple’s notes and many are reporting that the problem is solved. It will also fix some issues that some had with mobile data and connectivity.
The 100MB update is designed mostly for bug fixes, so you shouldn’t expect any brand new features in this minor upgrade. iOS 13.3 is already in the beta phase though, and that may bring larger updates to your phone.
You should be able to download the iOS 13.2.2 update to your phone now, or at least in the next few hours. You’ll want to head to the Settings app on your iPhone and look under the General tab for the option that says Software Update.
If you have the update ready and waiting, it will give you the option to download it, followed by the option to install it.
iOS 13.2 is for all iOS 13-compatible devices. This means the iPhone 6S and newer and the current iPod touch 7th generation. Upgrade notifications are usually automatic, but if you need to trigger them manually, go to Settings > General > Software Update. Beta testers, if you are running a later version of iOS when you read this (more in ‘The Road Ahead’ section below), remember to unroll your iPhones or iOS 13.2 won’t show up.
iPad owners, Apple has moved you to a new dedicated platform: iPadOS.
Apple iOS 13 Has 25 Great Secret Features
The Deal Breakers
The headline news is iOS 13.2 has been bricking the Apple HomePod. Working in unison with a new version of the speaker’s audioOS, HomePod owners have found that connecting to iPhones upgraded to iOS 13.2 breaks Apple Music, and if they try to reset their HomePods, they are stuck in an endless boot loop. Apple has now issued a warning about this and pulled the respective updates. What a mess.
“@AppleSupport I am glad to learn that the iOS13 battery drain is not a hardware defect but an iOS thing. I updated (iPhone 6s) today to the latest 13.2, and the problem is as bad as before. #fixbatterydrain” – source
“Updated to iOS 13.2 after 13.1 in the hope that the battery drain issue would be fixed. Now it is worse! Really not a great experience” – source
“@AppleSupport the battery drain is still crazy bad on 13.2 and iPhone SE. Is this a sneaky way to force me to upgrade?” – source
Mail problems are also unresolved (“@AppleSupport I downloaded iOS 13.2 on my iPhone 8, and now I cannot see any emails – source, “#iOS 13.2, and Mail app is stupidly still broken. Thanks, @apple @AppleSupport for the $700 useless communication device – source) and Messages still has issues.
So What Do You Get?
While it seems Apple didn’t spend much time trying to fix existing problems in iOS 13.2, it does introduce a lot of new features. They are as follows:
Deep Fusion for iPhone 11, iPhone 11 Pro, and iPhone 11 Pro Max
Change video resolution directly from the Camera app for iPhone 11, iPhone 11 Pro, and iPhone 11 Pro Max
Over 70 new or updated emoji
AirPods Pro support
Siri can read your incoming messages to AirPods
HomeKit Secure Video to privately capture, store, and view encrypted video from your security cameras
HomeKit enabled routers to control HomeKit accessories over the internet or in your home
Siri privacy settings to stop Apple storing the audio of Siri and Dictation interactions
Option to delete your Siri and Dictation history from Siri Settings
The headline here is Deep Fusion. This is a new form of image processing which shoots multiple images at different exposures then fuses them together (much like the technique Google Pixels use). It’s an automatic mode, so you can’t manually select it, but when enabled, it has the potential to produce significantly better texture and detail for photos taken in mid-to-low light.
iOS 13.2 also sees Apple step up its HomeKit efforts after they had started to stagnate, and the new Siri modes are essential after the Siri privacy debacle.
Apple has also been working on things under the hood. The company’s official security page lists 26 security fixes (14 of which are for WebKit), and Apple has actually quashed some bugs, just not the big ones:
Fixes an issue that may prevent passwords from auto-filling in 3rd party apps
Resolves an issue that may prevent the keyboard from appearing when using Search
Addresses an issue where swipe to go home might not work on iPhone X and later
Fixes an issue where Messages would only send a single notification when the option to repeat alerts was enabled
Addresses an issue where Messages may display a phone number instead of a contact name
Resolves an issue that caused Contacts to launch to the previously opened contact instead of the contact list
Fixes an issue that may prevent Markup annotations from being saved
Resolves an issue where saved notes could temporarily disappear
Fixes an issue where iCloud Ba,ckup might not successfully complete after tapping Backup Now in Settings
Improves performance when using AssistiveTouch to activate App Switcher
Helpful as these are, the serious ongoing problems with Mail, Calls, and Battery Life need to be treated as a priority at this point.
Apple iPhone Users Reporting Serious Battery Problems
Apple iOS 13.2 Verdict: Upgrade From iOS 13, Avoid From iOS 12
With the exception of HomePod owners who need to avoid this update like the plague, existing iOS 13 owners should upgrade since they have little to lose at this point. iOS 13.2 has a lot of new features (particularly for iPhone 11 series owners) and the security and bug fixes are worth having, even if the big issues continue to slip by Apple’s attention.
Meanwhile, iOS 12 owners should continue to stay put. Deep Fusion isn’t available to older iPhones so only emoji addicts and owners of AirPods Pro need to make the move. Right now the grass on the other side is not greener.
The Road Ahead
I had high hopes for iOS 13.2 delivering more substantial bug fixes, but their absence means I suspect we will see iOS 13.2.1 very soon. In fact, I’d be surprised if it is not released within a week. There are simply too many ongoing problems with iOS 13 and a lot more ‘minor point’ dedicated bug fixes are needed.
Welcome to our guide on how to fix macOS Catalina problems. From installation issues to hardware and software that doesn’t work as it should, we have a range of fixes that should address many of the macOS 10.15 Catalina problems people are encountering.
But what happens if you encounter a macOS Catalina problem that we haven’t covered? In that case, follow and tweet the details to us, and we’ll do what we can to find a solution.
A common macOS Catalina problem is that macOS 10.15 fails to download, with some people seeing an error message that says “macOS Catalina download has failed.”
Some users also see “The network connection was lost” error messages when they try to download macOS Catalina.
Another common macOS Catalina download problem shows the error message: “Installation of macOS could not continue. Installation requires downloading important content. That content can’t be downloaded at this time. Try again later.”
There are a few reasons why you may get this problem. It may be because a lot of people are trying to download macOS Catalina at the same time. If this is the issue, try again later to see if the download now works. You can also check the live status of the Apple Server to make sure everything is alright on Apple’s end.
The macOS Catalina download may also fail if you do not have enough storage space available on your Mac. To make sure you do, open up the Apple menu and click on ‘About This Mac.’
Select ‘Storage’ and then check to make sure you have enough space on your hard drive. You need at least 15GB free. If you’re running low, open up the Apple menu, click ‘About this Mac,’ then go to Storage > Manage and free up some disk space there.
It may also be worth switching from a Wi-Fi connection to an Ethernet cable, to ensure your internet connection is as reliable as possible.
If you’re still having problems downloading macOS Catalina, try to find the partially-downloaded macOS 10.15 files and a file named ‘Install macOS 10.15’ on your hard drive. Delete them, then reboot your Mac and try to download macOS Catalina again.
If you still have a problem downloading macOS Catalina, open up the App Store, click ‘View My Account’ and see if there is anything in the ‘Unfinished Downloads’ section. You may be able to restart the download from there.
Finally, try logging out of the Store to see if that restarts the download.
How to fix macOS Catalina install problems
If you’re having problems installing macOS Catalina, first make sure you check out how to download and install the macOS Catalina guide, which will take you through the steps you need to take to safely install the new operating system.
First of all, you’ll want to make sure you have a Mac that can run macOS Catalina. The following Macs are compatible:
12-inch MacBook (2015 and later)
MacBook Air (2012 and later)
MacBook Pro (2012 and later)
Mac mini (2012 and later)
iMac (2012 and later)
iMac Pro (2017)
Mac Pro (2013 and later)
If you have a compatible Mac and the macOS Catalina download completes, but there’s no prompt for the installation to continue, then search in your Mac’s application folder for a file called ‘Install macOS 10.15’. Double-click the file to begin the installation.
If you encounter the macOS Catalina problem where the installation fails due to low disk space, restart your Mac and press Control + R while it’s booting to enter the Recovery mode. Select ‘Disk boot’ to boot normally, then remove any files you no longer need.
macOS Catalina is stuck on ‘Setting Up Your Mac.’
We’ve had readers contact us saying that after installing macOS Catalina, their Macs show the ‘Setting Up Your Mac’ message, but nothing else happens.
If this is the case, you’ll need to force a reboot of your Mac or MacBook. Don’t worry, the ‘Setting Up Your Mac’ message means the update is finished, so you won’t lose any data or damage anything by restarting your Mac.
To do so, press and hold down the power button for a few seconds until the Mac or MacBook turns off. Wait a few more seconds, then turn it back on. Your Mac or MacBook should now boot into macOS Catalina successfully.
If you’re struggling to free up disk space, look out for hidden Time Machine files that may be taking up large amounts of space.
Once you have freed up enough space, retry the installation.
If macOS Catalina encounters a problem at the end of the installation, and then shows an error message, restart your Mac and press Command + Option + R on your keyboard while the Mac boots to start up the recovery system over the Internet. You can also try Shift + Option + Command + R.
It may be worth restarting your Mac in Safe Mode, then trying to install macOS 10.15 Catalina from there to fix the problem.
How to fix macOS Catalina login problems
If you’re having trouble logging into your Mac or MacBook after installing macOS Catalina, or you’re stuck in a loop where you log in, then get logged out again, the following steps might help.
First, restart your Mac and hold down the Command + S keys on your keyboard as it boots up.
This will boot you into a command prompt. Now, enter the following:
/sbin/mount -uw /
Press Enter on your keyboard. Then enter the following:
This removes a file, which makes it appear like you’re starting Catalina up for the first time. Don’t worry, nothing important is getting deleted. Press Enter, then restart your Mac.
You will then be asked to create a new admin user account.
Is macOS Catalina running slowly? Here’s how to fix it
Once macOS Catalina is installed on your Mac or MacBook, you may notice that your device is running slower than before.
If macOS Catalina also showed a notification that said “Optimizing Your Mac: Performance and battery life may be affected until completed,” then this is normal, as macOS Catalina is doing things behind the scenes which can initially impact performance.
After a day or so, your Mac should be running just as well (if not better) as before. If you don’t see an improvement by then, try restarting your Mac or MacBook.
Another thing to check is to make sure that all of your apps and software are updated to the latest version. If any of them have issues with Catalina, that could be slowing down your machine.
You can also open up the Apple menu and select ‘System Preferences.’ From the window that appears, click ‘Users & Groups’. Select ‘Login Items’ and then choose the apps you want to stop opening at startup and click the small minus sign below the list.
It’s also worth making sure all of your apps are updated. Check the App Store for any available updates, or the app’s website.
You can also try restarting your Mac to see if that helps. If it doesn’t, force-quit any apps that appear to be taking up a lot of RAM. You can identify these by using Activity Monitor (in /Applications/Utilities) to establish what apps and processes are using up the most CPU or RAM. Its CPU tab lists active operations, with a real-time view of what’s going on.
To force-quit an item, click it in the Activity Monitor list, click the X at the left of the toolbar, then confirm you want to force-quit.
Also, delete the cache. Open the Finder window, select ‘Go’ from the top menu and select ‘Go to Folder.’
In the text box that appears, type /Library/Caches.
Remove the data from inside every folder. Now repeat the process with /Library/Caches (without the symbol). Running the Repair Disk tool from within Disk Utility may also help, and for more solutions, check out our How to speed up your Mac guide.
How to fix macOS Catalina battery issues
As with the performance issues above, you may find that at first, your MacBook’s battery life is a lot shorter. Again, this is probably because macOS Catalina is doing some background work to set itself up – and after a few hours or a day, things should have settled down, and your battery life should be back to normal.
If it isn’t, then making sure all your apps are updated. You can also click the battery icon on the top menu bar, which will show you what apps and processes are taking up a lot of your battery life. Close those and see if the battery improves.
If it does, then make sure the apps in question have been updated, and check any of their settings to see why they would be taking up so much battery life in macOS Catalina.
You may need to restart your Mac to get the mouse working.
How to fix macOS Catalina Bluetooth issues
To fix issues with Bluetooth devices not working in macOS Catalina, try opening up Finder and then click on ‘Go’ in the top menu, then ‘Go to Folder…’. Type in ‘/Library/Preferences’.
From there, you should see a file called ‘com.apple.Bluetooth.plist ‘. Select and delete the file (or move it to another folder for safe keeping), then restart your Mac and try connecting your Bluetooth device again.
How to fix macOS Catalina boot problems
If you’ve installed macOS Catalina, but your Mac won’t start, then restart your Mac and hold down Command, Option, P and R, which will reset the NVRAM (non-volatile RAM).
Hold the keys down until the computer restarts and you hear the startup chime for the second time. Release the keys after you hear the second startup chime. The PRAM will be reset as well.
While in Safe Mode, run Disk Utility to see if that will fix any macOS Catalina boot problems.
However, if you’re having issues getting Sidecar to work in macOS Catalina, there are a few things to check.
To use Sidecar, you need one of the following iPad models:
iPad mini 5
iPad Air 3
Any iPad Pro
The iPad needs to have the new iPadOS software installed as well.
You also need to make sure you have a compatible Mac:
iMac 27-inch (Late 2015 or newer)
MacBook Pro (2016 or newer)
Mac mini (2018)
Mac Pro (2019)
MacBook Air (2018)
MacBook (Early 2016 or newer)
If you don’t own one of the above, all is not lost. Reddit user u/dotmax has discovered that you can use Sidebar on older Macs by running a Terminal command – but we wouldn’t recommend it, as the results aren’t great.
If you’re having issues with connecting to the internet, either via Wi-Fi or an Ethernet (wired) connection after installing macOS Catalina, then try starting your Mac in Safe Mode and see if you can connect.
If you can, it means that there’s an issue with an app or extension that you have installed. Make sure you have updated your drivers and apps, and keep an eye out for an Apple update in the future.