DEPRECATE.md (2411B)
1 <!-- 2 Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. 3 4 SPDX-License-Identifier: curl 5 --> 6 7 # Items to be removed from future curl releases 8 9 If any of these deprecated features is a cause for concern for you, please 10 email the 11 [curl-library mailing list](https://lists.haxx.se/listinfo/curl-library) 12 as soon as possible and explain to us why this is a problem for you and 13 how your use case cannot be satisfied properly using a workaround. 14 15 ## Nothing 16 17 Nothing is currently scheduled to be removed. 18 19 ## msh3 support 20 21 The msh3 backed for QUIC and HTTP/3 was introduced in April 2022 but has never 22 been made to work properly. It has seen no visible traction or developer 23 activity from the msh3 main author (or anyone else seemingly interested) in 24 two years. As a non-functional backend, it only adds friction and "weight" to 25 the development and maintenance. 26 27 Meanwhile, we have a fully working backend in the ngtcp2 one and we have two 28 fully working backends in OpenSSL-QUIC and quiche well on their way of ending 29 their experimental status in a future. 30 31 We remove msh3 support from the curl source tree in July 2025. 32 33 ## winbuild build system 34 35 curl drops support for the winbuild build method after September 2025. 36 37 We recommend migrating to CMake. See the migration guide in 38 `docs/INSTALL-CMAKE.md`. 39 40 ## Windows CE 41 42 Windows CE "mainstream support" ended on October 9, 2018, and "Extended 43 Support" ended on October 10, 2023. 44 45 curl drops all support in November 2025. 46 47 ## VS2008 48 49 curl drops support for getting built with Microsoft Visual Studio 2008 in 50 November 2025. 51 52 The only reason we kept support for this version is for Windows CE - and we 53 intend to remove support for that Operating System in this time frame as well. 54 Bumping the minimum to VS2010. VS2008 is a pain to support. 55 56 Previous discussion and details: https://github.com/curl/curl/discussions/15972 57 58 ## Past removals 59 60 - axTLS (removed in 7.63.0) 61 - Pipelining (removed in 7.65.0) 62 - PolarSSL (removed in 7.69.0) 63 - NPN (removed in 7.86.0) 64 - Support for systems without 64-bit data types (removed in 8.0.0) 65 - NSS (removed in 8.3.0) 66 - gskit (removed in 8.3.0) 67 - MinGW v1 (removed in 8.4.0) 68 - NTLM_WB (removed in 8.8.0) 69 - space-separated `NOPROXY` patterns (removed in 8.9.0) 70 - hyper (removed in 8.12.0) 71 - Support for Visual Studio 2005 and older (removed in 8.13.0) 72 - Secure Transport (removed in 8.15.0) 73 - BearSSL (removed in 8.15.0)