https://github.com/tesseract-ocr/tesseract/wiki/TrainingTesseract#the-unicharambigs-file

has info about both formats

Which file use unicharambigs file v2?

I think Ray had updated the documentation (couple years back??). From what
I understand from it unicharambigs file could be either in v1 format or v2
format.

• sent from my phone. excuse the brevity.

On 01-Sep-2016 12:38 AM, "zdenop" notifications@github.com wrote:

Which file use unicharambigs file v2?

I did not find (in langdata repository) language that use v2 of unicharambigs... So I am not sure if it make sense to write docs for it (=> propagate it) if it is not used (=> not tested).

Thanks for checking langdata from 3.04.

Ray is the best person to answer whether v2 has been used/tested for any
languages.

Also, there was supposed to be a new release as per tutorial at DAS2016. Do
you know when that will be and what is included in it?

• sent from my phone. excuse the brevity.

I hear something like end of September 2016, but you never know ;-) It will big update (probably we will drop support of compilers nor support c++11)...

@zdenop Any update regarding 4.0 release? Thanks!

I found only one lang in langdata, that use v2: gle_uncial :-)

The lstm engine does not use the unicharambigs file.

but unicharambigs is still there present e.g. in eng. And 4.0 version support also legacy engine.