NOTE: I heard about some users replacing plugin jar files while the server is running. This is a very bad practice. This can make a program fail! Also this can cause data loss. Imagine you take your CPU out of your PC while the computer is turned on. Better don't do these things. Thanks!
# IMPROVED Database performance
# IMPROVED Data unloading handling
# IMPROVED Entity locking
# IMPROVED Data load and object handling
# IMPROVED Garbadge collector
# FIXED Hopper explode issue 1.14.x
Please note: The hopper won't work correctly on older server versions.
It's not possible to add support for that for older spigot versions