19620: Remove old "v1" S3 keepstore driver.

[arvados.git] / doc / admin / upgrading.html.textile.liquid

diff --git a/doc/admin/upgrading.html.textile.liquid b/doc/admin/upgrading.html.textile.liquid
index 96966c942f6a684dd27848e81dc3d2536ed67788..026931ed08ee8ccb8cf81f74363ffc6677d60306 100644 (file)
--- a/doc/admin/upgrading.html.textile.liquid
+++ b/doc/admin/upgrading.html.textile.liquid
@@ -32,6 +32,10 @@ h2(#main). development main (as of 2023-04-06)
 
 "previous: Upgrading to 2.6.0":#v2_6_0
 
+h3. UseAWSS3v2Driver option removed
+
+The old "v1" S3 driver for keepstore has been removed. The new "v2" implementation, which has been the default since Arvados 2.5.0, is always used. The @Volumes.*.DriverParameters.UseAWSS3v2Driver@ configuration key is no longer recognized. If your config file uses it, remove it to avoid warning messages at startup.
+
 h2(#v2_6_0). v2.6.0 (2023-04-06)
 
 "previous: Upgrading to 2.5.0":#v2_5_0