diff --git a/contrib/src/nginx/SHA512SUMS b/contrib/src/nginx/SHA512SUMS
index 679b0b7..80f911c 100644
--- a/contrib/src/nginx/SHA512SUMS
+++ b/contrib/src/nginx/SHA512SUMS
@@ -42,3 +42,4 @@
 173d6d5c1471df1f5fbcf43fab19699ac509faee44a6c603f5e96ba59ac58774bbd84be5b45f5922a12b4037e4b32f875ce71c28e3e6adb70f306a2d25b40736  nginx-1.21.3.tar.gz
 8f0be700bbec70abdb9902c27044334038087d03bdf07b9bdf1520f416edd12ca504bdd0244b34c542b222c28d5bd2d0add54dcb04b235e763d088fa3e2cee6e  nginx-1.21.4.tar.gz
 e9eb80f230131ad1bb8e2bd0cede5eb7be40c4ed2564e26abcc5e7bfdde9a724e7257245d4b0ce7130e80ee4034e38f80c3bc09d8f5c7dadefc7a371dd8d77b4  nginx-1.21.5.tar.gz
+10b0cdd13b26687104bf11e6b850fd851e9d8881bdf67f72c062d956e661da4d70482e6ec3123405b324ad7ed821a8bcc67b742dce9f59e972407fa437ddcad4  nginx-1.21.6.tar.gz
diff --git a/contrib/src/nginx/version b/contrib/src/nginx/version
index e01bcd3..fa9e345 100644
--- a/contrib/src/nginx/version
+++ b/contrib/src/nginx/version
@@ -1,2 +1,2 @@
-NGINX_VERSION := 1.21.5
+NGINX_VERSION := 1.21.6
 NGINX_PLUS_VERSION := 25
diff --git a/docs/nginx-module-auth-spnego.xml b/docs/nginx-module-auth-spnego.xml
index ebc7b49..5aefa48 100644
--- a/docs/nginx-module-auth-spnego.xml
+++ b/docs/nginx-module-auth-spnego.xml
@@ -5,6 +5,18 @@
 <change_log title="nginx_module_auth_spnego">
 
 
+<changes apply="nginx-module-auth-spnego" ver="1.1.0" rev="1" basever="1.21.6"
+         date="2022-01-25" time="18:13:46 +0300"
+         packager="Mikhail Isachenkov &lt;mikhail.isachenkov@nginx.com&gt;">
+<change>
+<para>
+base version updated to 1.21.6-1
+</para>
+</change>
+
+</changes>
+
+
 <changes apply="nginx-module-auth-spnego" ver="1.1.0" rev="1" basever="1.21.5"
          date="2021-12-28" time="18:40:58 +0300"
          packager="Konstantin Pavlov &lt;thresh@nginx.com&gt;">
diff --git a/docs/nginx-module-brotli.xml b/docs/nginx-module-brotli.xml
index 7e061c3..69c7152 100644
--- a/docs/nginx-module-brotli.xml
+++ b/docs/nginx-module-brotli.xml
@@ -5,6 +5,18 @@
 <change_log title="nginx_module_brotli">
 
 
+<changes apply="nginx-module-brotli" ver="1.0.0" rev="1" basever="1.21.6"
+         date="2022-01-25" time="18:13:46 +0300"
+         packager="Mikhail Isachenkov &lt;mikhail.isachenkov@nginx.com&gt;">
+<change>
+<para>
+base version updated to 1.21.6-1
+</para>
+</change>
+
+</changes>
+
+
 <changes apply="nginx-module-brotli" ver="1.0.0" rev="1" basever="1.21.5"
          date="2021-12-28" time="18:40:58 +0300"
          packager="Konstantin Pavlov &lt;thresh@nginx.com&gt;">
diff --git a/docs/nginx-module-encrypted-session.xml b/docs/nginx-module-encrypted-session.xml
index 501081e..15529e7 100644
--- a/docs/nginx-module-encrypted-session.xml
+++ b/docs/nginx-module-encrypted-session.xml
@@ -5,6 +5,18 @@
 <change_log title="nginx_module_encrypted_session">
 
 
+<changes apply="nginx-module-encrypted-session" ver="0.08" rev="1" basever="1.21.6"
+         date="2022-01-25" time="18:13:46 +0300"
+         packager="Mikhail Isachenkov &lt;mikhail.isachenkov@nginx.com&gt;">
+<change>
+<para>
+base version updated to 1.21.6-1
+</para>
+</change>
+
+</changes>
+
+
 <changes apply="nginx-module-encrypted-session" ver="0.08" rev="1" basever="1.21.5"
          date="2021-12-28" time="18:40:58 +0300"
          packager="Konstantin Pavlov &lt;thresh@nginx.com&gt;">
diff --git a/docs/nginx-module-fips-check.xml b/docs/nginx-module-fips-check.xml
index 8db2367..2c1f76c 100644
--- a/docs/nginx-module-fips-check.xml
+++ b/docs/nginx-module-fips-check.xml
@@ -5,6 +5,18 @@
 <change_log title="nginx_module_fips_check">
 
 
+<changes apply="nginx-module-fips-check" ver="0.1" rev="1" basever="1.21.6"
+         date="2022-01-25" time="18:13:46 +0300"
+         packager="Mikhail Isachenkov &lt;mikhail.isachenkov@nginx.com&gt;">
+<change>
+<para>
+base version updated to 1.21.6-1
+</para>
+</change>
+
+</changes>
+
+
 <changes apply="nginx-module-fips-check" ver="0.1" rev="1" basever="1.21.5"
          date="2021-12-28" time="18:40:58 +0300"
          packager="Konstantin Pavlov &lt;thresh@nginx.com&gt;">
diff --git a/docs/nginx-module-geoip.xml b/docs/nginx-module-geoip.xml
index 2a6b7d1..e81491f 100644
--- a/docs/nginx-module-geoip.xml
+++ b/docs/nginx-module-geoip.xml
@@ -5,6 +5,18 @@
 <change_log title="nginx_module_geoip">
 
 
+<changes apply="nginx-module-geoip" ver="1.21.6" rev="1"
+         date="2022-01-25" time="18:13:46 +0300"
+         packager="Mikhail Isachenkov &lt;mikhail.isachenkov@nginx.com&gt;">
+<change>
+<para>
+base version updated to 1.21.6-1
+</para>
+</change>
+
+</changes>
+
+
 <changes apply="nginx-module-geoip" ver="1.21.5" rev="1"
          date="2021-12-28" time="18:40:58 +0300"
          packager="Konstantin Pavlov &lt;thresh@nginx.com&gt;">
diff --git a/docs/nginx-module-geoip2.xml b/docs/nginx-module-geoip2.xml
index dbf1fcb..0213e4a 100644
--- a/docs/nginx-module-geoip2.xml
+++ b/docs/nginx-module-geoip2.xml
@@ -5,6 +5,18 @@
 <change_log title="nginx_module_geoip2">
 
 
+<changes apply="nginx-module-geoip2" ver="3.3" rev="1" basever="1.21.6"
+         date="2022-01-25" time="18:13:46 +0300"
+         packager="Mikhail Isachenkov &lt;mikhail.isachenkov@nginx.com&gt;">
+<change>
+<para>
+base version updated to 1.21.6-1
+</para>
+</change>
+
+</changes>
+
+
 <changes apply="nginx-module-geoip2" ver="3.3" rev="1" basever="1.21.5"
          date="2021-12-28" time="18:40:58 +0300"
          packager="Konstantin Pavlov &lt;thresh@nginx.com&gt;">
diff --git a/docs/nginx-module-headers-more.xml b/docs/nginx-module-headers-more.xml
index ed7bf14..491e18b 100644
--- a/docs/nginx-module-headers-more.xml
+++ b/docs/nginx-module-headers-more.xml
@@ -5,6 +5,18 @@
 <change_log title="nginx_module_headers_more">
 
 
+<changes apply="nginx-module-headers-more" ver="0.33" rev="1" basever="1.21.6"
+         date="2022-01-25" time="18:13:46 +0300"
+         packager="Mikhail Isachenkov &lt;mikhail.isachenkov@nginx.com&gt;">
+<change>
+<para>
+base version updated to 1.21.6-1
+</para>
+</change>
+
+</changes>
+
+
 <changes apply="nginx-module-headers-more" ver="0.33" rev="1" basever="1.21.5"
          date="2021-12-28" time="18:40:58 +0300"
          packager="Konstantin Pavlov &lt;thresh@nginx.com&gt;">
diff --git a/docs/nginx-module-image-filter.xml b/docs/nginx-module-image-filter.xml
index c9d8ba0..d89f2ac 100644
--- a/docs/nginx-module-image-filter.xml
+++ b/docs/nginx-module-image-filter.xml
@@ -5,6 +5,18 @@
 <change_log title="nginx_module_image_filter">
 
 
+<changes apply="nginx-module-image-filter" ver="1.21.6" rev="1"
+         date="2022-01-25" time="18:13:46 +0300"
+         packager="Mikhail Isachenkov &lt;mikhail.isachenkov@nginx.com&gt;">
+<change>
+<para>
+base version updated to 1.21.6-1
+</para>
+</change>
+
+</changes>
+
+
 <changes apply="nginx-module-image-filter" ver="1.21.5" rev="1"
          date="2021-12-28" time="18:40:58 +0300"
          packager="Konstantin Pavlov &lt;thresh@nginx.com&gt;">
diff --git a/docs/nginx-module-lua.xml b/docs/nginx-module-lua.xml
index 015d319..cc9ebaa 100644
--- a/docs/nginx-module-lua.xml
+++ b/docs/nginx-module-lua.xml
@@ -5,6 +5,18 @@
 <change_log title="nginx_module_lua">
 
 
+<changes apply="nginx-module-lua" ver="0.10.19" rev="1" basever="1.21.6"
+         date="2022-01-25" time="18:13:46 +0300"
+         packager="Mikhail Isachenkov &lt;mikhail.isachenkov@nginx.com&gt;">
+<change>
+<para>
+base version updated to 1.21.6-1
+</para>
+</change>
+
+</changes>
+
+
 <changes apply="nginx-module-lua" ver="0.10.19" rev="1" basever="1.21.5"
          date="2021-12-28" time="18:40:58 +0300"
          packager="Konstantin Pavlov &lt;thresh@nginx.com&gt;">
diff --git a/docs/nginx-module-modsecurity.xml b/docs/nginx-module-modsecurity.xml
index 3bf785e..61b54ba 100644
--- a/docs/nginx-module-modsecurity.xml
+++ b/docs/nginx-module-modsecurity.xml
@@ -5,6 +5,18 @@
 <change_log title="nginx_module_modsecurity">
 
 
+<changes apply="nginx-module-modsecurity" ver="1.0.2" rev="1" basever="1.21.6"
+         date="2022-01-25" time="18:13:46 +0300"
+         packager="Mikhail Isachenkov &lt;mikhail.isachenkov@nginx.com&gt;">
+<change>
+<para>
+base version updated to 1.21.6-1
+</para>
+</change>
+
+</changes>
+
+
 <changes apply="nginx-module-modsecurity" ver="1.0.2" rev="1" basever="1.21.5"
          date="2021-12-28" time="18:40:58 +0300"
          packager="Konstantin Pavlov &lt;thresh@nginx.com&gt;">
diff --git a/docs/nginx-module-ndk.xml b/docs/nginx-module-ndk.xml
index 81d5ec2..a2f2d7a 100644
--- a/docs/nginx-module-ndk.xml
+++ b/docs/nginx-module-ndk.xml
@@ -5,6 +5,18 @@
 <change_log title="nginx_module_ndk">
 
 
+<changes apply="nginx-module-ndk" ver="0.3.1" rev="1" basever="1.21.6"
+         date="2022-01-25" time="18:13:46 +0300"
+         packager="Mikhail Isachenkov &lt;mikhail.isachenkov@nginx.com&gt;">
+<change>
+<para>
+base version updated to 1.21.6-1
+</para>
+</change>
+
+</changes>
+
+
 <changes apply="nginx-module-ndk" ver="0.3.1" rev="1" basever="1.21.5"
          date="2021-12-28" time="18:40:58 +0300"
          packager="Konstantin Pavlov &lt;thresh@nginx.com&gt;">
diff --git a/docs/nginx-module-njs.xml b/docs/nginx-module-njs.xml
index 1e90683..f6e130f 100644
--- a/docs/nginx-module-njs.xml
+++ b/docs/nginx-module-njs.xml
@@ -5,6 +5,18 @@
 <change_log title="nginx_module_njs">
 
 
+<changes apply="nginx-module-njs" ver="0.7.2" rev="1" basever="1.21.6"
+         date="2022-01-25" time="18:13:46 +0300"
+         packager="Mikhail Isachenkov &lt;mikhail.isachenkov@nginx.com&gt;">
+<change>
+<para>
+base version updated to 1.21.6-1
+</para>
+</change>
+
+</changes>
+
+
 <changes apply="nginx-module-njs" ver="0.7.2" rev="1" basever="1.21.5"
          date="2022-01-25" time="16:44:14 +0300"
          packager="Mikhail Isachenkov &lt;mikhail.isachenkov@nginx.com&gt;">
diff --git a/docs/nginx-module-opentracing.xml b/docs/nginx-module-opentracing.xml
index 3943ec9..d650cc9 100644
--- a/docs/nginx-module-opentracing.xml
+++ b/docs/nginx-module-opentracing.xml
@@ -5,6 +5,18 @@
 <change_log title="nginx_module_opentracing">
 
 
+<changes apply="nginx-module-opentracing" ver="0.22.1" rev="1" basever="1.21.6"
+         date="2022-01-25" time="18:13:46 +0300"
+         packager="Mikhail Isachenkov &lt;mikhail.isachenkov@nginx.com&gt;">
+<change>
+<para>
+base version updated to 1.21.6-1
+</para>
+</change>
+
+</changes>
+
+
 <changes apply="nginx-module-opentracing" ver="0.22.1" rev="1" basever="1.21.5"
          date="2021-12-28" time="18:40:58 +0300"
          packager="Konstantin Pavlov &lt;thresh@nginx.com&gt;">
diff --git a/docs/nginx-module-passenger.xml b/docs/nginx-module-passenger.xml
index 8de164b..412056c 100644
--- a/docs/nginx-module-passenger.xml
+++ b/docs/nginx-module-passenger.xml
@@ -5,6 +5,18 @@
 <change_log title="nginx_module_passenger">
 
 
+<changes apply="nginx-module-passenger" ver="6.0.8" rev="1" basever="1.21.6"
+         date="2022-01-25" time="18:13:46 +0300"
+         packager="Mikhail Isachenkov &lt;mikhail.isachenkov@nginx.com&gt;">
+<change>
+<para>
+base version updated to 1.21.6-1
+</para>
+</change>
+
+</changes>
+
+
 <changes apply="nginx-module-passenger" ver="6.0.8" rev="1" basever="1.21.5"
          date="2021-12-28" time="18:40:58 +0300"
          packager="Konstantin Pavlov &lt;thresh@nginx.com&gt;">
diff --git a/docs/nginx-module-perl.xml b/docs/nginx-module-perl.xml
index 8a6b89e..d401057 100644
--- a/docs/nginx-module-perl.xml
+++ b/docs/nginx-module-perl.xml
@@ -5,6 +5,18 @@
 <change_log title="nginx_module_perl">
 
 
+<changes apply="nginx-module-perl" ver="1.21.6" rev="1"
+         date="2022-01-25" time="18:13:46 +0300"
+         packager="Mikhail Isachenkov &lt;mikhail.isachenkov@nginx.com&gt;">
+<change>
+<para>
+base version updated to 1.21.6-1
+</para>
+</change>
+
+</changes>
+
+
 <changes apply="nginx-module-perl" ver="1.21.5" rev="1"
          date="2021-12-28" time="18:40:58 +0300"
          packager="Konstantin Pavlov &lt;thresh@nginx.com&gt;">
diff --git a/docs/nginx-module-rtmp.xml b/docs/nginx-module-rtmp.xml
index 6b84eeb..6a5e302 100644
--- a/docs/nginx-module-rtmp.xml
+++ b/docs/nginx-module-rtmp.xml
@@ -5,6 +5,18 @@
 <change_log title="nginx_module_rtmp">
 
 
+<changes apply="nginx-module-rtmp" ver="1.2.2" rev="1" basever="1.21.6"
+         date="2022-01-25" time="18:13:46 +0300"
+         packager="Mikhail Isachenkov &lt;mikhail.isachenkov@nginx.com&gt;">
+<change>
+<para>
+base version updated to 1.21.6-1
+</para>
+</change>
+
+</changes>
+
+
 <changes apply="nginx-module-rtmp" ver="1.2.2" rev="1" basever="1.21.5"
          date="2021-12-28" time="18:40:58 +0300"
          packager="Konstantin Pavlov &lt;thresh@nginx.com&gt;">
diff --git a/docs/nginx-module-set-misc.xml b/docs/nginx-module-set-misc.xml
index c62a013..eaee0a0 100644
--- a/docs/nginx-module-set-misc.xml
+++ b/docs/nginx-module-set-misc.xml
@@ -5,6 +5,18 @@
 <change_log title="nginx_module_set_misc">
 
 
+<changes apply="nginx-module-set-misc" ver="0.32" rev="1" basever="1.21.6"
+         date="2022-01-25" time="18:13:46 +0300"
+         packager="Mikhail Isachenkov &lt;mikhail.isachenkov@nginx.com&gt;">
+<change>
+<para>
+base version updated to 1.21.6-1
+</para>
+</change>
+
+</changes>
+
+
 <changes apply="nginx-module-set-misc" ver="0.32" rev="1" basever="1.21.5"
          date="2021-12-28" time="18:40:58 +0300"
          packager="Konstantin Pavlov &lt;thresh@nginx.com&gt;">
diff --git a/docs/nginx-module-subs-filter.xml b/docs/nginx-module-subs-filter.xml
index ced6301..8729474 100644
--- a/docs/nginx-module-subs-filter.xml
+++ b/docs/nginx-module-subs-filter.xml
@@ -5,6 +5,18 @@
 <change_log title="nginx_module_subs_filter">
 
 
+<changes apply="nginx-module-subs-filter" ver="0.6.4" rev="1" basever="1.21.6"
+         date="2022-01-25" time="18:13:46 +0300"
+         packager="Mikhail Isachenkov &lt;mikhail.isachenkov@nginx.com&gt;">
+<change>
+<para>
+base version updated to 1.21.6-1
+</para>
+</change>
+
+</changes>
+
+
 <changes apply="nginx-module-subs-filter" ver="0.6.4" rev="1" basever="1.21.5"
          date="2021-12-28" time="18:40:58 +0300"
          packager="Konstantin Pavlov &lt;thresh@nginx.com&gt;">
diff --git a/docs/nginx-module-xslt.xml b/docs/nginx-module-xslt.xml
index c26f666..a2a1e5c 100644
--- a/docs/nginx-module-xslt.xml
+++ b/docs/nginx-module-xslt.xml
@@ -5,6 +5,18 @@
 <change_log title="nginx_module_xslt">
 
 
+<changes apply="nginx-module-xslt" ver="1.21.6" rev="1"
+         date="2022-01-25" time="18:13:46 +0300"
+         packager="Mikhail Isachenkov &lt;mikhail.isachenkov@nginx.com&gt;">
+<change>
+<para>
+base version updated to 1.21.6-1
+</para>
+</change>
+
+</changes>
+
+
 <changes apply="nginx-module-xslt" ver="1.21.5" rev="1"
          date="2021-12-28" time="18:40:58 +0300"
          packager="Konstantin Pavlov &lt;thresh@nginx.com&gt;">
diff --git a/docs/nginx.xml b/docs/nginx.xml
index 9ff40ff..742c833 100644
--- a/docs/nginx.xml
+++ b/docs/nginx.xml
@@ -5,6 +5,18 @@
 <change_log title="nginx">
 
 
+<changes apply="nginx" ver="1.21.6" rev="1"
+         date="2022-01-25" time="18:13:46 +0300"
+         packager="Mikhail Isachenkov &lt;mikhail.isachenkov@nginx.com&gt;">
+<change>
+<para>
+1.21.6-1
+</para>
+</change>
+
+</changes>
+
+
 <changes apply="nginx" ver="1.21.5" rev="1"
          date="2021-12-28" time="18:40:58 +0300"
          packager="Konstantin Pavlov &lt;thresh@nginx.com&gt;">