You are new to Insider? All Insider builds except release candidates have an expiration date after which they quit working or go into a "reboot every hour" mode. Of course, before that date ever occurs there will be either newer builds with a later expire date, or a non-expiring one.
at least they fixed the mayor issue in 15063 wish was fail to install after reboot...so they did something correct. We fixed the issue causing your PC to fail to install new builds on reboot with the error 8024a112. We have updated the share icon in File Explorer (in the Share tab) to match our new share iconography. We fixed an issue where Cortana Reminders was displayed as a possible share target when Cortana wasn’t enabled. We fixed an issue where Miracast sessions would disconnect a minute or so after the Connect UI was closed if the connection was a first time pairing. We fixed a high-DPI issue when “System (Enhanced)” scaling is enabled so as to now correctly display certain applications that use display graphics accelerated contents. Turning the night light schedule off in Settings now turns night light off immediately.
Is that stupid discussion still going on? After release of 15063 MSDN iso's, permalinks to combined(sl)(n) esd's, etcetc....
Yay! Code: ============================================================ Preparing Reference ESDs . . . ============================================================ CAB->ESD: amd64fre_Client_en-gb_lp DIR->ESD: Microsoft-Windows-RegulatedPackages-WOW64-Package DIR->ESD: Microsoft-Windows-RegulatedPackages-Package DIR->ESD: Microsoft-Windows-QuickAssist-Package DIR->ESD: Microsoft-Windows-LanguageFeatures-TextToSpeech-en-gb-Package DIR->ESD: Microsoft-Windows-LanguageFeatures-Speech-en-gb-Package DIR->ESD: Microsoft-Windows-LanguageFeatures-OCR-en-gb-Package DIR->ESD: Microsoft-Windows-LanguageFeatures-Handwriting-en-gb-Package DIR->ESD: Microsoft-Windows-LanguageFeatures-Basic-en-gb-Package DIR->ESD: Microsoft-Windows-Holographic-Desktop-Merged-WOW64-Package DIR->ESD: Microsoft-Windows-Holographic-Desktop-Merged-Package DIR->ESD: Microsoft-Windows-Holographic-Desktop-Analog-Package DIR->ESD: Microsoft-Windows-Foundation-Package DIR->ESD: Microsoft-Windows-EditionSpecific-Professional-Package DIR->ESD: Microsoft-Windows-EditionPack-Professional-WOW64-Package DIR->ESD: Microsoft-Windows-EditionPack-Professional-Package DIR->ESD: Microsoft-Windows-ContactSupport-Package DIR->ESD: Microsoft-Windows-Client-Features-WOW64-Package DIR->ESD: Microsoft-Windows-Client-Features-Package DIR->ESD: Microsoft.ModernApps.Client.professional DIR->ESD: Microsoft.ModernApps.Client.All ============================================================ Creating Setup Media Layout . . . ============================================================ ============================================================ Creating boot.wim . . . ============================================================ Using LZX compression with 16 threads Archiving file data: 886 MiB of 886 MiB (100%) done "ISOFOLDER\sources\boot.wim" original size: 358347 KiB Using LZX compression with 16 threads Archiving file data: 958 MiB of 958 MiB (100%) done "ISOFOLDER\sources\boot.wim" optimized size: 353643 KiB Space saved: 4703 KiB ============================================================ Creating install.wim . . . ============================================================ Using LZX compression with 16 threads Archiving file data: 7184 MiB of 7184 MiB (100%) done ============================================================ Adding winre.wim to install.wim . . . ============================================================ ============================================================ Creating ISO . . . ============================================================ OSCDIMG 2.56 CD-ROM and DVD-ROM Premastering Utility Copyright (C) Microsoft, 1993-2012. All rights reserved. Licensed only for producing Microsoft authorized content. Scanning source tree (1500 files in 54 directories) Scanning source tree complete (1720 files in 99 directories) Computing directory information complete Image file is 4142071808 bytes (before optimization) Writing 1720 files in 99 directories to 16170.1000.170331-1532.RS_PRERELEASE_CLIENTPRO_OEMRET_X64FRE_EN-GB.ISO 100% complete Storage optimization saved 19 files, 137216 bytes (0% of image) After optimization, image file is 4145680384 bytes Space saved because of embedding, sparseness or optimization = 137216 Done. Press any key to exit.
It's RS3 branch, just early stages of it. At they moment they are working on the OS fundamentals, other changes will be merged once Microsoft feels it necessary from a testing perspective. It's the same as previously when the first post-release Insider build has become available, like after Anniverary Update. For argument's sake, the only RS2 build is 15063, since every other build before that were RS2 release candidates, Insider Previews etc, and the further back you go the more it was like Anniverary Update and the less like RS2 final, but every build post 14393 up to and including 15063 belong to the RS2.