I think a warning dialog on first start of 2.1 would be reasonable. It 
should have buttons to either reanalyze all MP3 files in the library or 
dismiss the warning.

On 04/18/2017 04:16 AM, Tuukka Pasanen wrote:
> Hello,
>
> Should we but big fat warning on first start? Something like: You should
> update your waveforms or you will suffer from incorrect mixing points or
> something and add some SQL tag to see if it's new or old style waveform
> and warn again if it's not updated.
>
> Tuukka
>
>
> 18.04.2017, 11:48, Daniel Schürmann kirjoitti:
>> Hi,
>>
>> We need a decision on this bug:
>> https://bugs.launchpad.net/mixxx/+bug/1666275
>>
>> Due to fixed decoding issues there can be waveform offsets if you
>> upgrade from 2.0 2.1 which makes you beat grid and cue points off
>> beat. In 2.0 the user can already have this off beat situation after
>> seek jumping over a place with a decoding issue.
>>
>> If we invalidate all beat-grids during migration, the user has nothing
>> and will hate us. If we silently do nothing he will mix a wrong beat
>> and will hate us as well.
>> Al users which are already at 2.1. might have already dealed with this
>> situation.
>>
>> A full featured solution will be a auto detection of this situation
>> with a warning and optional user actions. This is an expensive and
>> complex task, unlikely to be happened.
>>
>> What would be a good solution avoiding bad surprises after update.
>>
>> Any ideas?
>>
>> Thank you for your help,
>>
>> Daniel
>>
>>
>>
>>
>>
>>
>>
>>
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>
>
>
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>
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