Does it affect your wordpress blog if you have forgotten to deactivate your plugins (as recommended) prior to upgrading your wp version?
The answer is yes and no.
The “recommendation” to deactivate plugins (prior to upgrading) is just to enable you to identify any plugins that are not compatible with your new wp version. For example, after your wp upgrade, it is recommended to activate each plugin one at a time. Each time you activate a plugin, you need to come out from your plugin folder and log into the same folder …