Pre-Release Builds

This page contains links to the Pre-release builds that the release managers create before each actual release. These builds are meant for the community to test whether no inadvertent changes have been made, and whether no regressions have been introduced.

Source Builds

PHP 8.5.6RC1

php-8.5.6RC1.tar.bz2 23 Apr 2026 c1dc3dfc7be00aff78e92419b990cc99a447a338be213a3c542030bd08dd717a
php-8.5.6RC1.tar.gz 23 Apr 2026 dc1cf05cd4533b81506074c208db1ce33b643ce30108392233cae21a5c841734
php-8.5.6RC1.tar.xz 23 Apr 2026 d57fa52541f8f2dd9511efb42e2b9307af49189a64f07cb69ae078371f70b4dc

PHP 8.4.21RC1

php-8.4.21RC1.tar.bz2 23 Apr 2026 92be1ab180946fb6fe21456cfae08190fe556fb643d56043bd56f034ae145368
php-8.4.21RC1.tar.gz 23 Apr 2026 e4c3eb09b3948bda0a0e41c73424a73c1d3ca6c7ee81efb22f26f07cb7476929
php-8.4.21RC1.tar.xz 23 Apr 2026 c1a77cbbfe2dc7dd37b11f88ff68f112dbed6eaa9ba2d232e0a1b57852c93096

Windows Builds

PHP 8.5.6RC1

Download source code 31.85MB
Download tests package (phpt) 18.08MB

VS17 x64 Thread Safe

Zip 33.92MB 21 Apr 2026 566217ed37e6a9282d90b16f45189bd1bbeef5f06215008fe441e2d307d26c2d
Debug Pack 39.74MB 21 Apr 2026 1c3447d8b18449db6d0a842b43763f7e5ffda6c282e8189d0d35fe40adb1c09e
Development package (SDK to develop PHP extensions) 1.64MB 21 Apr 2026 1c55ce770e04232d597c6768d59d28e23b7f6dadef17401a31c6490eb03cd864

VS17 x86 Thread Safe

Zip 30.36MB 21 Apr 2026 c4e724520109267ff809d3d3d34cf7fba5dceb78c56928a418cf630012be4461
Debug Pack 40.69MB 21 Apr 2026 8374d9d2c2056441d095cc608b32dfed8d57bda7c8a3ab679fa389860694f0e3
Development package (SDK to develop PHP extensions) 1.64MB 21 Apr 2026 7fee7985843c1b556549616506c63f5b917a298a1f440824dd67be83ecbc10fd

VS17 x64 Non Thread Safe

Zip 33.8MB 21 Apr 2026 1dda356f83bc1ed79b769f6601acd3aefa6f54b8ba6cf2f455f14fb4bc1fe91a
Debug Pack 39.91MB 21 Apr 2026 2b25f5a5d12a658486f37f1786e0893acbb8dd4d3a470873d8f2876880b3f973
Development package (SDK to develop PHP extensions) 1.63MB 21 Apr 2026 de82a1dd6aa485a310ef5f9728202440f851cd8049b49c4984d3c2f6c53815a9

VS17 x86 Non Thread Safe

Zip 30.31MB 21 Apr 2026 08e9669af5e5151b9a7fbb75dd34745aed230c7b6af014f339fa2956ddce9085
Debug Pack 40.58MB 21 Apr 2026 98401f741ef3118c1b7ed7571dda11e67bed0c1c919a5794c56a6855b03e4d84
Development package (SDK to develop PHP extensions) 1.63MB 21 Apr 2026 8a28c70ff48815e519159da734249ae12a48e951770950d8f154ade9ceb428ef

PHP 8.4.21RC1

Download source code 29.7MB
Download tests package (phpt) 17.51MB

VS17 x64 Thread Safe

Zip 32.95MB 21 Apr 2026 fe6c40a79dbefcad22f8bed9250e12f554d1b03a879972879618dfc56706d122
Debug Pack 39.26MB 21 Apr 2026 f33ef79a3694c6e7ff1b0cdb7ef060462941014a9ea1976af7c8f6a3c69e51de
Development package (SDK to develop PHP extensions) 1.36MB 21 Apr 2026 d3b364048b6ba9f10781e4a0a8d20ca2a0d409b0bd7309d8a24e682b30f75e4a

VS17 x86 Thread Safe

Zip 29.56MB 21 Apr 2026 9514465fb2b857d625c8474593bd534f7afd781578a35d8790532c5fae2e719b
Debug Pack 39.94MB 21 Apr 2026 fae5b5a75b9a0bcbf68143ae91e9d721ff86f1d702f789965abf6cd868c124c7
Development package (SDK to develop PHP extensions) 1.36MB 21 Apr 2026 f41fda961b47a2af6620d30159bd6a543489984bb52c696d67f92b7a52c750f8

VS17 x64 Non Thread Safe

Zip 32.8MB 21 Apr 2026 1b5bacc79f8838c0269139fca4b835f9d3ecc3bd3453615a6cb476b5ff154628
Debug Pack 39.26MB 21 Apr 2026 cf9e209d8604cd6e45c6bac78d31db841c19b357c9a4a32348bbc5bde98f60ac
Development package (SDK to develop PHP extensions) 1.36MB 21 Apr 2026 e25a98b9c97ad00ddfdaf0e0106a139edc5779f7749af865cbbc0f161647be9c

VS17 x86 Non Thread Safe

Zip 29.49MB 21 Apr 2026 4f040d23f016137257086fa8d2acfca1b9e651563fc3c6cc17e72cf007feb4bb
Debug Pack 39.87MB 21 Apr 2026 bc3796a276765b0207f6b0600b8b4c62dc0f2e9b990223eaa927424db55af6cc
Development package (SDK to develop PHP extensions) 1.36MB 21 Apr 2026 a6fc3b26fa569dd237354d9effed02fcdefa3845eb68611d6ed7f226d3b22ca3