Currently by default, version is created on every modification of asset? Is there a configuration to disable it?

Asset versions are getting created when asset is modified or published.I want to create asset version only on publish but not on asset modification. Can we stop creating versions when asset is modified? Can we differentiate asset version created by modification and publish? Also can we store version...

We have created custom namespace "nnb" and using it for asset metadata. When we try to download content fragment with metadata zip file, getting below error with corrupted zip file. Please help.Note: namespace is registered at crx/explorerLogs:08.03.2019 09:23:54.105 *ERROR* [0:0:0:0:0:0:0:1 [155201...