Update documentation for 0.29.0 release.

Closes #9273.

PiperOrigin-RevId: 265916750

scripts/docs/doc_versions.bzl

diff --git a/scripts/docs/doc_versions.bzl b/scripts/docs/doc_versions.bzl
index 45fbb43..5d57e0a 100644
--- a/scripts/docs/doc_versions.bzl
+++ b/scripts/docs/doc_versions.bzl
@@ -23,6 +23,10 @@
 
 DOC_VERSIONS = [
     {
+        "version": "0.29.0",
+        "sha256": "99d7a6bf9ef0145c59c54b4319fb31cb855681782080a5490909c4a5463c7215",
+    },
+    {
         "version": "0.28.0",
         "sha256": "64b3fc267fb1f4c56345d96f0ad9f07a2efe43bd15361f818368849cf941b3b7",
     },

site/_config.yml

diff --git a/site/_config.yml b/site/_config.yml
index 067bee0..53ca7b6 100644
--- a/site/_config.yml
+++ b/site/_config.yml
@@ -11,11 +11,12 @@
 gems: [jekyll-paginate]
 
 # Update this to the newest release for the default docs.bazel.build version.
-version: "0.28.0"
+version: "0.29.0"
 
 # This must be kept in sync with //scripts/docs:doc_versions.bzl
 doc_versions:
   - master
+  - 0.29.0
   - 0.28.0
   - 0.27.0
   - 0.26.0