[development] 5.x to 6.x migration timeline, best practices, tips

[T L]

Hello All,

I've inherited a 5.x (5.05 I think) site with about 20 contributed modules
and one monster custom module (~ 7000 lines), and I'm looking at migrating
to 6.x sometime in the next few months.  I've looked over the handbook pages
and done a little bit of googling with some good success.  But I haven't
found much info on planning or common pitfalls.

So I was wondering if anyone had any suggestions on things to look out for
or a generalized timeline?  My guess was at least 100 hours to upgrade to
5.18, migrate to 6.12, test the system, and then adjust the theme and api
calls.  Does this seem reasonable at all?

Any thoughts, suggestions, or redirects to resources would be much
appreciated.

Thanks so much,
Tim

-- 

Tim Loudon
t: 781.686.6096
e: tloud365 at gmail.com
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