[mbed-tls] How much bigger is MbedTLS 2.28.1 relative to 2.16.2? (STM 32F417 GCC)

I may need TLS 1.3 support which I believe arrived in 2.28, or maybe a bit later.

I don't want to change to TLS 3 just yet. It looks like many changes.

My target is "OK" on FLASH (150k of the 350k total code size) but is tight on RAM (after allocating 50k for the MbedTLS heap, we have just 20k RAM left).

Ideally I would like the very last version of v2.

The problem just found is that Cloudflare is asking for TLS 1.3 which MbedTLS 2.16 does not support. But it may be that Cloudflare can fall back and the problem is elsewhere.

Many thanks for any input.