Changelog: Finalize for v1.29.0 (#3954)

Author: kinke

CHANGELOG.md

@@ -1,5 +1,11 @@
 # LDC master
 
+#### Big news
+
+#### Bug fixes
+
+# LDC 1.29.0 (2022-04-08)
+
 #### Big news
 - Frontend, druntime and Phobos are at version [2.099.1](https://dlang.org/changelog/2.099.0.html). (#3917, #3893, #3937, #3953)
 - Support for LLVM 13 and 14. The prebuilt packages use v13.0.1. (#3842, #3951)
@@ -8,10 +14,15 @@
 - When linking manually (not via LDC) against *shared* druntime, it is now required to link the bundled `lib/ldc_rt.dso.o[bj]` object file into each binary. It replaces the previously Windows-specific `dso_windows.obj`. (#3850)
 - Breaking `extern(D)` ABI change for all targets: formal parameters of non-variadic functions aren't reversed anymore, in line with the spec. For 32-bit x86, the *first* parameter is accordingly now potentially passed in EAX, not the last one. So non-variadic `extern(D)` functions with multiple explicit parameters will break if expecting parameters in specific registers or stack slots, e.g., naked DMD-style inline assembly. (#3873, ldc-developers/phobos@3d725fce8f0acb78bf6cb984a8462e81e8e1b715)
 
+#### Platform support
+- Supports LLVM 6.0 - 14.0.
+- Basic compiler support for Newlib targets, i.e., triples like `arm-none-newlibeabi`. (#3946)
+
 #### Bug fixes
 - Linux: Make LTO work with LLD. (#3786, #3850)
 - Windows: Fix most undefined symbols with `-dllimport=all` without `-linkonce-templates`. (#3916, #3923, #3926, #3927, #3928, #3931, #3932)
 - Capture NRVO variable by ref for stack closures. (#3883, #3902)
+- `-ftime-trace`: JSON-escape filenames. (#3947, #3948)
 - RISC-V: Use 128-bit quadruple `real`. (#3892)
 
 # LDC 1.28.1 (2022-01-13)