[wp-trac] [WordPress Trac] #24642: readme.html in core download does not warn about >2 version upgrades

[WordPress Trac]

#24642: readme.html in core download does not warn about  >2 version upgrades
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 Reporter:  esmi          |       Owner:
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  Text Changes  |     Version:  2.7
 Severity:  normal        |  Resolution:
 Keywords:  close         |
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Comment (by SergeyBiryukov):

 Replying to [comment:10 nacin]:
 > Strongly disagree with this. If a database is getting damaged going
 seven releases, it was going to get damaged going one release too.

 It's not just database upgrade routines, it's timeout and `memory_limit`
 issues too (3.5.2 package is almost twice as large as 3.0).

 One scenario I could actually reproduce is a fatal error (Allowed memory
 size of 33554432 bytes exhausted) when updating directly from 2.9.2 to
 3.5.2.

 [14491] was added to fix that, and after manually updating to 3.0 first,
 the automatic update from 3.0 to 3.5.2 works fine. Of course,
 [http://wordpress.org/plugins/memory-bump/ Memory Bump] would help too if
 the user knows what to look for, however if `display_errors` is off (which
 I guess is the default for many hosts), the issue may not be obvious.

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Ticket URL: <http://core.trac.wordpress.org/ticket/24642#comment:12>
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