MySQL Bugs: #116032: Documentation on Downgrading MySQL outdated

Bug #116032	Documentation on Downgrading MySQL outdated
Submitted:	7 Sep 2024 1:10	Modified:	11 Sep 2024 19:05
Reporter:	Mike Griffin	Email Updates:
Status:	Closed	Impact on me:	None
Category:	MySQL Server: Documentation	Severity:	S3 (Non-critical)
Version:	8.0.36	OS:	Any
Assigned to:		CPU Architecture:	Any
Tags:	downgrade

Description:
Currently, docs state that:

Downgrade [...] from a MySQL 8.0 release to a previous MySQL 8.0 release, is not supported.

Prior versions showed:

[ERROR] [MY-013171] [InnoDB] Cannot boot server version 80033 on data directory built by version 80034. Downgrade is not supported

[ERROR] [MY-013171] [InnoDB] Cannot boot server version 80034 on data directory built by version 80035. Downgrade is not supported

After 8.0.35 downgrading is possible to 8.0.35:

[System] [MY-014064] [Server] Server downgrade from '80036' to '80035' started.
[System] [MY-014064] [Server] Server downgrade from '80036' to '80035' completed.

How to repeat:
https://dev.mysql.com/doc/refman/8.0/en/downgrading.html
https://dev.mysql.com/doc/mysql-installation-excerpt/8.0/en/downgrading.html

Suggested fix:
Update docs to reflect current ability to downgrade to 8.0 minor releases, version 8.0.35 or above

Hi,

I've already filed this internally a while ago so let's wait for that;

Doc 36813774 - since 8.0.35, seems downgrades within 8.0.x are possible.

 -- 
Shane Bester, MySQL Senior Principal Technical Support Engineer
Oracle Corporation
http://dev.mysql.com/

Posted by developer:
 
Thank you for reporting this bug, it's now fixed in the documentation source.

Thanks for addressing this so promptly.

I see the changes are live here:

https://dev.mysql.com/doc/mysql-installation-excerpt/8.0/en/downgrading.html

Can you please also update:

https://dev.mysql.com/doc/refman/8.0/en/downgrading.html

Both look good now. Thanks!