https://forums.mydigitallife.net/posts/1880781 + https://forums.mydigitallife.net/posts/1880783 Thanks to @steven4554 for completing the info
do we have an enablement package to go from 26100 to 26200 without subscribing to dev channel, or i need to clean install it
Yes you can install the enablement package to upgrade to 26200 builds, but you will need to enrol in the dev channel to receive future builds and install the latest Dev LCU. Plus it's not recommended to mix Retail build with any of the Release Preview, Beta and Dev LCU's as this could lead to stability issues.