Apple seeds 10.5.2 build 9C23; massive 500MB

Following our recent report on the “Mac Pro build” of OS X Leopard, 9C16 and recent seeds of 10.5.2, Apple has posted a new seed for third party developers to evaluate, 9C23. The already extremely lengthy changelist and fast-growing update package is now over well into the hundreds of megabytes and could eventually exceed 400MB(!), making it the single largest point update to OS X ever.

Depending on whether one is updating a PowerPC or Intel Mac, packages could vary from 250 to upwards of 400MB in size, and some on the grapevine believe its final weigh-in could be very close to five hundred megabytes.

Either way, it will be a huge download and there has been a lot of debate at Infinite Loop, according to reliable sources, as to whether the update should be split into multiple packages (the core system update, and individual updates to applications or components), hold back some changes for Security Updates that will follow shortly after the point upgrade…..or a more unusual solution, such as offering the update with a nominal pricetag of a few dollars on a CD-ROM disk for purchase at the Apple Store, to ease the burden on modem users or others for whom such a massive download is impractical.

For the rest of us, in the broadband age, a 500MB download isn’t such a big deal, but it will still be a huge strain on Cupertino’s bandwidth at a time when things like HD movie rentals and other new offerings are already rapidly expanding Infinite Loop’s bandwidth usage.

To prepare for the update, which was originally slated to have already been released but due to a huge changelog and the need for extra upstream bandwidth to be allocated for the huge surge that the Software Update release will bring, Apple’s network engineers have been frantically working overtime and on weekends to install new fiber, routers, servers and infrastructure to be ready for this.

One 500MB download might not be enough to bring Apple’s servers to a crawl on their own, or even coupled with the new HD movie downloads and ever-growing iTunes Store…..but Apple is also about to begin offering iPhone applications for sale and has a “major new .Mac related offering” to announce in March — about which we will soon be rumor-mongering, so stay tuned on that! — so adapting to all of these needs at once has proven quite a challenge for the usually unflappable network techs in Cupertino.

According to reliable sources, the final release of 10.5.2 will most likely come around build 9C40 and should arrive well before the end of February — quite possibly in as little as two weeks, if Tron’s latest “postcards from Silicon Valley” are accurate — so stay tuned for all the latest OS X update coverage and all the dirt that’s fit to print right here on Mac OS Rumors!


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  • http://lessthan3.netraptor.org Siemova

    Thanks for this! Last I heard from the other rumor sites, 10.5.2 was probably coming Any Day Now. But when that got pushed back, none of them said anything. What I appreciate most about you guys is that you often fill in the blanks.

  • http://macosrumors.com steve

    Distribution bandwidth isn’t going to be a real problem for something like this, akamai and the other content networks can handle this with ease.

    But they should still distribute it other ways for people with limited bandwidth. For instance people with hard caps who must watch how much the download per month.

  • Entasis

    Yes, thanks for the information as I have put my hopes for 10.5.2 on the side lines. Apple is having major growing pains, and it is starting to show. I would much rather receive OS updates based upon what I truly use versus what Apple wants to stuff in regarding all their venues. The more successful Apple becomes—the more it is starting to look and act like others that most Apple users do not like.

  • crosseyed

    I would like to see the CD personally or break it into multiple packages. I know many people that couldn’t begin to download a 300 plus MB update. It can easily take 2 days time to download 150MB with speed download. Without such a program downloading a file that size is futile when it come to dial up and the frequent disconnect interruptions.

  • What’s the frequency, Kenneth?

    No kidding! Thanks for the update. I’ve been waiting for 10.5.2 ever since 10.5.1 came out so quickly (I never install a .0 and rarely a .1.)

    One word for Apple regarding their conundrum: bittorrent.

    You’d think system updates would be a perfect application of bittorrent technology. They should at least offer downloads as torrents, even if they haven’t figured out how to use the model for the control panel. I’d happily use bittorrent to update the family’s Macs (I support three households) if given the opportunity.

  • http://thepoliticallyincorrectfish.com/pif5/ PIF

    There was a rumor once upon a time that APPL was going to have some bittorrent-like function built into 10.5
    FWIW

  • http://www.google.com Ash

    Bittorent? It would never get delivered, you need a LOT of machines for that to work, right? Despite all this seeming success, Macs are still a very small percentage of computers. Just download the update directly and share to each Mac, then you get it quickly!

  • http://macosrumors.com admin

    Yeah, Rumors actually was one of the first to report on the “BitTorrent in Leopard” stories…..turns out the project wasn’t really coupled to Leopard, and it’s actually part of a “P2P Alternative” project that Apple is working on with its TV/Film/Music industry partners to distribute free content directly between Mac users, using the “BitTorrent-like” technology to help users find the closest/fastest peer(s) to grab a given file from.

    We think we’ll be hearing more about this technology when Apple finally announces its major overhaul of .Mac — a full story on this is coming up soon. One really interesting rumor, which we hope is true but haven’t been able to confirm: .Mac may split into “free” and “premium/VIP” versions so that Apple can entice customers with nifty .Mac tools & services, get them used to them, and have an attractive set of enhancements/extras for a much better value package than today’s dot-Mac.

    We can dream…..but hopefully, this particular rumor is more than just a dream.

  • http://lessthan3.netraptor.org Siemova

    Well, if they used BT for software updates, it could work pretty much like Blizzard Entertainment’s game patches, where Apple would serve them but other users would share as well to decrease the load on their servers and speed things up for everyone. The end user wouldn’t even have to see anything different.

    By the way, MacRumors, I’d like to request that you disable the automatic page refresh, at least on article pages. It’s frustrating to have the page refresh while you’re in the middle of commenting. 😛

  • http://www.pro-match.com/nlp Greg

    500MB is large! But if Apple can’t handle that then they should not be involved with movie rentals at all! I just hope it doesn’t auto download during my peak time… I don’t want to eat into my peak cap. (then again – iTunes music is quota free and it seems Apple updates might be too.)

    I would like to see a Bittorrent-like download solution combined with the local Akamai servers. IF they can take the pressure off the internet backbone by using only nearby peers (and Akamai) that’d be great. They could even offer a rebate for people willing to upload.