Server Jar

[ignice]

What server JAR should I use for my server to run on 1.16.5 but still support other versions?

 

[growlygg]

https://airplane.gg/

with viaversion (for 1.17 support) & viabackwards (for support for versions below 1.16.5)

 

[JustAnAverageJew]

What server JAR should I use for my server to run on 1.16.5 but still support other versions?

no

 

[Kryptic_MZ]

I would recommend using purpur with ViaVersion

 

[Akupanu]

What server JAR should I use for my server to run on 1.16.5 but still support other versions?

viaversion.jar

 

[Aidaan]

If it is 1.16.5, the developer of WineSpigot (Golfing8) has a 1.16 jar at $300, however I am not sure if he is currently selling publicly yet.