How fixes, enhancements, etc. become updates.

• Does an 'official' Squeak image include _all_ changes on the change server which were added before the release date?
  
  Yes, but the changes file is normally condensed for each "official" version release, so previous versions of methods will be lost. A full sequential update from way back will retain the previous versions of everything in the changes file.
  
  
  
• Are the change sets on the update server checked against each other for eventual conflicts?
  How and when does a [FIX] from the Squeak Email List get to the update server?
  
  It is looked at and checked by someone at Squeak Central (SqC) -- sometimes the [FIX] is modified, extended, or done in a different manner before being released (if the [FIX] is actually just fixing a symptom of the real problem, SqC will normally ignore the patch and do the real fix). Most (all?) fixes will eventually go by Dan for at least final QC (quality check) before being released as an [UPDATE]. Very few [FIX]s sent to the list will come from SqC -- if they do a fix they will normally just put it into the update stream.
  
  
• How and when does an [UPDATE] from the Squeak Email List get to the update server?
  
  There isn't any update coming from the squeak mailing list to the update server. It goes in the opposite direction:
  All [UPDATE]s are issued by Squeak Central and announced on the list. The [UPDATE]s originate both from internal work done at SqC and from selected [GOODIE]s, [ANN]s, [FIX]s, and [ENH]s sent to the list after SqC has at least QCed them. About '[]' items.
  
  
• Do some or all [ENH] changes lead to updates on the update server?
  
  [ENH]s sent to the list almost always come from Squeakers at large and are not (initially) part of the [UPDATE] stream. Again, enhancements done by SqC will normally just be put into the update stream if they are deemed worthy after some use and experience at SqC. Whether an [ENH] sent to the list becomes an [UPDATE] depends on a number of things -- here SqC applies their experience and judgement to make the decision. Sometimes one person's [ENH] is another's [YUCK!]. ;-)