I just downloaded the latest plugin jar and it is saying is it up to date, is this because I'm using spigot and not paper, if it is would I just be able to force start the plugin by changing the code that checks the server version. or will I have to resort to using paper.

[23:15:21] [Server thread/INFO]: [Lifesteal-Smp-Plugin] Enabling Lifesteal-Smp-Plugin v1.5.1.2
[23:15:21] [Server thread/ERROR]: Error occurred while enabling Lifesteal-Smp-Plugin v1.5.1.2 (Is it up to date?)
java.lang.NoClassDefFoundError: net/kyori/adventure/text/Component
at me.ikevoodoo.lifestealsmpplugin.LifestealSmpPlugin.onEnable(LifestealSmpPlugin.java:34) ~[?:?]
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[spigot-1.17.1.jar:3180-Spigot-38e6c03-ca0fe5b]
at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:342) ~[spigot-1.17.1.jar:3180-Spigot-38e6c03-ca0fe5b]
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:480) ~[spigot-1.17.1.jar:3180-Spigot-38e6c03-ca0fe5b]
at org.bukkit.craftbukkit.v1_17_R1.CraftServer.enablePlugin(CraftServer.java:495) ~[spigot-1.17.1.jar:3180-Spigot-38e6c03-ca0fe5b]
at org.bukkit.craftbukkit.v1_17_R1.CraftServer.enablePlugins(CraftServer.java:409) ~[spigot-1.17.1.jar:3180-Spigot-38e6c03-ca0fe5b]
at net.minecraft.server.MinecraftServer.loadWorld(MinecraftServer.java:604) ~[spigot-1.17.1.jar:3180-Spigot-38e6c03-ca0fe5b]
at net.minecraft.server.dedicated.DedicatedServer.init(DedicatedServer.java:266) ~[spigot-1.17.1.jar:3180-Spigot-38e6c03-ca0fe5b]
at net.minecraft.server.MinecraftServer.x(MinecraftServer.java:995) ~[spigot-1.17.1.jar:3180-Spigot-38e6c03-ca0fe5b]
at net.minecraft.server.MinecraftServer.lambda$0(MinecraftServer.java:303) ~[spigot-1.17.1.jar:3180-Spigot-38e6c03-ca0fe5b]
at java.lang.Thread.run(Thread.java:831) [?:?]
Caused by: java.lang.ClassNotFoundException: net.kyori.adventure.text.Component
at org.bukkit.plugin.java.PluginClassLoader.loadClass0(PluginClassLoader.java:142) ~[spigot-1.17.1.jar:3180-Spigot-38e6c03-ca0fe5b]
at org.bukkit.plugin.java.PluginClassLoader.loadClass(PluginClassLoader.java:99) ~[spigot-1.17.1.jar:3180-Spigot-38e6c03-ca0fe5b]
at java.lang.ClassLoader.loadClass(ClassLoader.java:519) ~[?:?]
... 11 more
[23:15:21] [Server thread/INFO]: Server permissions file permissions.yml is empty, ignoring it
[23:15:21] [Server thread/INFO]: Done (34.520s)! For help, type "help"

Hello, yes you indeed have to use paper, however I am working on bringing the plugin to more servers and more versions, also no there is no code for it, its the server making sure the server version is the same or similar version to the one my plugin requires, removing the version specification will cause problems!