v1.4.2

What's Changed

• bugfix: handle format errors in KafkaSource by @zliang-min in #513
• Improve merge selecting algorithm for big partitions by @yokofly in #515
• Feature/issue 297 random stream supports slow eps by @lizhou1111 in #507
• revert special functions parsing changes by @yl-lisen in #524
• Feature/issue 522 support extract kv pairs by @yokofly in #525
• some minor supports and fixes by @yl-lisen in #529
• load telemetry_enabled configuration system from environment by @qijun-niu-timeplus in #539
• feature: [External Stream] Format settings declared on creation time should be taken into account by @zliang-min in #534
• enhancement: input_format_skip_unknown_fields default to true for external streams by @zliang-min in #550
• support tracking updated aggregated states by @yl-lisen in #465
• feature: External Table ( for ClickHouse ) by @zliang-min in #546

Full Changelog: v1.4.1...v1.4.2