Apple today seeded the fourth beta of an upcoming macOS Catalina 10.15.5 update to developers for testing purposes, one week after seeding the third beta and over a month after releasing macOS Catalina 10.15.4 with Screen Time Communication Limits, iCloud Folder Sharing, and real-time Apple Music lyrics.

macos catalina wallpaper
The new macOS Catalina beta can be downloaded from the Software Update mechanism in System Preferences after installing the proper software from the Developer Center.

macOS Catalina 10.15.5 introduces a new Battery Health Management feature for Mac notebooks, which is designed to extend the overall lifespan of a Mac's battery by reducing the rate of chemical aging.

The Battery Health Management feature analyzes the battery health of a laptop and its charging pattern, and in some cases, will preserve battery longevity and health by not charging a MacBook to its full capacity, which can reduce battery life.

When a Mac is used plugged in and the battery is largely kept full, Battery Health Management will kick in and will stop short of a full charge. The feature can be enabled and disabled in the Energy Saver section of the System Preferences app.

Related Forum: macOS Catalina

Top Rated Comments

allpar Avatar
50 months ago
But does it fix the crash-on-sleep for computers with T2 chips? And will there be a Mojave fix for those same computers?
Score: 14 Votes (Like | Disagree)
jayducharme Avatar
50 months ago
I'm hoping they've straightened out the numerous eGPU quirks. ?
Score: 8 Votes (Like | Disagree)
petvas Avatar
50 months ago
Well, even with Steve Jobs we had buggy macOS releases. This has nothing to do with the current leadership, but is a bigger problem that has grown the last years inside Apple.
I hope actually that there will be no major release anymore. Why not just announce what is coming in the next two years and roll it out slowly, feature by feature? I think that this is a much better approach to OS development and would give Apple time to make its OS more stable. I don't want a new OS version each year. I don't need a new OS each year, actually I am happy with what we have now.
Score: 7 Votes (Like | Disagree)
ThunderSkunk Avatar
50 months ago
I wish that, since they’re not going to fix Catalina, that Apple would hold a bake sale to raise enough money to afford to hire a few high school kids to wedge the MBP16” graphics drivers into a mojave update. So all the people who blew $4000 on a notebook, in 2020 mind you, and got what is easily the least reliable and least useful computer I’ve ever owned, would have SOME way of getting some work done on this otherwise very beautiful thing, instead of just taking a massive bath on what would justifiably be the last major Apple purchase one could be expected to make.

i am hanging on to this thing while it sits awaiting an operating system. For a little while longer.
But srsly Apple, get it together.
Score: 6 Votes (Like | Disagree)
Babygotfont Avatar
50 months ago
I'm finally stable across my eco-system (2017 iMac, 2012 MBPr, 2012 MM, Apple Watch Series 3, HomePod(2), HomeBridge Applications (not apples, but I have a lot of HomeKit connected devices via Homebridge), iPhoneX, iPad Pro 10.5 ... I struggled for 1 year getting all sorts of issues figured out / diagnosed ...

I've disabled auto-update on all my devices ... my next update will be on 10.16.XXXXXX when WWDC releases 10.17 beta

I do not trust apples software QA/QC anymore
Score: 5 Votes (Like | Disagree)
MrGimper Avatar
50 months ago

Personally, I think this whole year has been a public beta test for the upcoming 10.16.
10.16 "Wuhan" :cool:
Score: 4 Votes (Like | Disagree)

Popular Stories

maxresdefault

Apple Cancels Electric Car Project

Tuesday February 27, 2024 11:05 am PST by
Apple has canceled all plans to release an autonomous, electric vehicle, reports Bloomberg. Apple has been working on an Apple Car for more than a decade and invested millions of dollars into development before deciding it was not a viable project. Subscribe to the MacRumors YouTube channel for more videos. Apple's Chief Operating Officer Jeff Williams today told approximately 2,000 employees ...
iOS 18 Mock iPhone 16 Feature Gray

iOS 18 Rumored to Be Compatible With These iPhone Models

Tuesday February 27, 2024 6:31 am PST by
iOS 18 will be compatible with the iPhone XR, and thereby also the iPhone XS and iPhone XS Max models with the same A12 Bionic chip, according to a post on X today from a private account with a proven track record of sharing build numbers for upcoming iOS updates. The post was spotted by MacRumors contributor Aaron Perris, and it has since been deleted. However, this was likely because the...
iOS 17

10 New Things Your iPhone Can Do in Next Week's iOS 17.4 Update

Friday March 1, 2024 1:30 am PST by
Apple will this month release iOS 17.4, its biggest iPhone software update of the year so far, featuring a number of features and changes that users have been anticipating for quite a while. Below, we've listed 10 new things that your iPhone will be able to do after you've installed the update, which is projected to arrive by March 7. When the day arrives, be sure to check Settings ➝...
Google maps feaure

Google Maps Finally Rolls Out Glanceable Directions

Wednesday February 28, 2024 2:07 am PST by
After more than a year since announcing the feature, Google Maps is finally rolling out glanceable directions on Android and iOS (via Android Police). The feature allows users to view turn-by-turn directions and a live ETA directly from their device's lock screen – information that was previously only visible when a phone was unlocked. Glanceable directions also work on the app's route...
iPad Air 5

iPadOS 18 Rumored to Drop Support for These iPad Models

Tuesday February 27, 2024 6:55 am PST by
iPadOS 18 will drop support for iPad models equipped with the A10X Fusion chip, according to a post on X today from a private account with a proven track record of sharing build numbers for upcoming iOS and iPadOS updates. This means that iPadOS 18 would not be compatible with the first-generation 10.5-inch iPad Pro or the second-generation 12.9-inch iPad Pro models released in 2017. It...
iOS 17

iOS 17.4 Coming Soon With These New Features for Your iPhone

Monday February 26, 2024 6:08 am PST by
In a press release last month, Apple confirmed that iOS 17.4 will be released in March, and the update includes several new features and changes for the iPhone. Key new features in iOS 17.4 include major App Store changes in the EU, Apple Podcasts transcripts, and an iMessage security upgrade. The update also adds new emoji and includes preparations for the launch of next-generation CarPlay...