On 11.06.2019 1:41, Vlad Khorsun wrote:

Do this 2 facts

- client have some ICU library, but it can't convert region ID obtained from
  server (because of different ICU version), or even
- wrong conversion of region ID at client side because of mismatched ICU
  version (sounds impossible, but not improbable)


mean that IDs difer between ICU versions?

One of "simple" solutions could be to ask sever once for whole conversion
table and to keep it at some temp file (or nearby fbclient\app) for future usage. It is also not ideal, as different servers could have different ICU versions, but
it could be a starting point to think on the better solution.


If different ICUs have different ID for same TZ than:
- ID should be extended with ICU version,
- suggested by Vlad table should have ICU version in the header. Yes, client will store >1 copies of that table if it connects to different servers (veray rare in practice case).





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