we are planning to downgrade/upgrade our 2960s and 2690x switches to IOS Version 15.0.2. Is there a recommended Release where we don't have to expect too many bugs ;) I'm looking for the most stable version of this release train. Any help is highly appreciated.
This is difficult question to answer as every environment is different and run different feature sets and almost every IOS has bugs. Pick a version and read the release notes for it, go over all the bug fixes, test it in the lab before you install it in production.
I was actually looking for some advice on which minor release to choose, e.g. 15.0.2-EX5(ED), 15.0.2-EX4(ED), 15.0.2-EX3(ED), 15.0.2-EX1(ED), 15.0.2-EX(ED), 15.0.2-SE6(ED), 15.0.2-SE5(ED), (..) 15.0.1-SE1(ED), 15.0.1-SE(ED) and so on.
Right now we have deployed IOS Version 15.2(1)E on our switches, and we are facing some serious issues (see  and ) with this IOS Version. Before downgrading, I want to make sure that this version is field-proven and considered to be "stable" enough for an productive invironment.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...