While I was repackaging ISO for 64bit version of Slax 9.6.1, I used midnight commander to extract the iso contents. Unfortunately I forgot that there is a bug in midnight commander and it does not see empty directories.
For that reason, Slax 9.6.2 ISO file did not contain /slax/changes directory, which is needed for storing persistent changes. You can fix that yourself easily by simply creating that directory. I've already pushed out version 9.6.3, which fixes this.
Lets hope I will avoidi such mistake next time. :)
You may notice that 32bit version 9.6.1 is the same as 9.6.2 and also the same as 9.6.3. Only 64bit version was affected and changed during these version bumps.