First post - whether to 'come out' at work

Hello all

very glad to have found this forum which appears to be one of the more active ones. 

My formal diagnosis has just come through after a multi year wait for the assessment. What a time to find our you're Autistic!

Can people help me work out a list of pros and cons for telling my employer that I am autistic? It is a public sector org which is all about diversity and inclusion these days. I am in senior management. In the past I have witnessed lots of autism discrimination. I can't help fearing:

1. judgement of coworkers who think it's playing some kind of special treatment card

2. having to take ignorant comments and not get into loads of conflicts

3. having my capability as a manager and team leader called in to question if I ask for new kinds of support 

Many thanks