Is ECharts 4.0 fully compatible with ECharts 3.0?

is ECharts 4.0 fully compatible with ECharts 3.0? For example, these two versions:
echarts3.6.1.js and echarts4.0.4.js

Compatible-with echarts4 echarts3 echarts
Mar.25,2021

there are some differences in code writing.

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MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b30cd7-2bd47.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b30cd7-2bd47.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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