Which MJML version is gomjml compatible with?

[BeMoreDog]

This project looks fantastic.

I can see the README states that gomjml targets full compliance with the official MJML specification, but I couldn’t find which version of MJML that currently refers to. For example, is gomjml currently compatible with MJML 4.x, MJML 5.x, or specifically a particular release such as 5.3.0?

Perhaps we could add the currently aligned MJML version to the README.

Thanks for building this!

[preslavrachev]

Hi,

Great question! The latest one tested has been 4.15.3 (I marked it on the README.md now too), so not the latest version, but relatively recent.

When I have some more free time, I will run all the e2e tests against the latest version of the MJML compiler to see what issues need implementation or fixing.

[danielloader]

I've opened #46 with evidence and a possible answer. I rendered every fixture with MJML 4.15.3 through 4.18.0. The existing goldens are 4.16.x output (none match 4.15.3), and gomjml emits 4.16 markup, so #46 pins the reference suite to 4.16.1 and makes it reproducible. The README correction is a separate commit. The version call is yours, so it needs your review.

[danielloader]

Follow-up to #46: #49 adds a differential harness that runs about 2,300 cases (testdata, MRML fixtures, MJML's own templates, generated attribute cases and a fuzzer) through MJML 4.16.1 and gomjml, and groups the differences into 84 distinct defects. It should make it easier to see what's needed for parity with the latest MJML.

[BeMoreDog]

Brilliant, thank you