Zabbix 2.0.17rc1, 2.2.12rc1, 2.4.8rc1 和 3.0.2rc1 发布了！以下是3.0.2rc1部分改进记录：
[ZBXNEXT-3210] replaced user macro cache with expanded trigger expression caching
[ZBX-1357] updated Chinese (China), Chinese (Taiwan), Czech, English (United States), French, Greek, Italian, Japanese, Korean, Polish, Portuguese (Brazil), Romanian, Russian, Slovak, Turkish, Ukrainian, Vietnamese translations; thanks to Zabbix translators
[ZBX-10318] added disabling of [-] or [+] buttons when screen column or row cannot be removed or added
[ZBX-10626] fixed crash in agent's collector process on Solaris 8
[ZBX-10564] fixed trigger acknowledging in slide shows
[ZBX-10571] fixed network discovery based on agent checks
[ZBX-9162] fixed performance of the hostgroup.get method under MySQL
[ZBX-10575] fixed history cache memory leak when floating value calculations resulted in out of bounds value
[ZBX-10410] fixed possible crashes during history cache synchronisation during shutdown/crash
[ZBX-10493] fixed memory leak when trying to reconnect to URL
[ZBX-10435] fixed position of labels in the action operation form
[ZBX-10608] fixed evaluation of action conditions with and/or evaluation type
[ZBX-6491] fixed resolving of {ITEM.VALUE} macro in "System status" widget and Monitoring -> Triggers
[ZBX-10563] fixed validation of timeperiods in maintenance create and maintenance update API methods
[ZBX-10375] defined zbx_uint32_t to avoid conflicting uint32_t definitions
[ZBX-10510] fixed action condition time period checking
[ZBX-10155] prohibited creation of a trigger prototype without item prototypes in the expression
[ZBX-6744] fixed "expression tree is too large (maximum depth 1000)" error when using SQLite3 in a large environment
[ZBX-10530] fixed trappers and agent listeners accepting connections without a timeout
[ZBX-10570] fixed incorrect select input height in FF
[ZBX-10413] improved XML import validation
[ZBX-4148] separated third-party library CFLAGS to avoid header file name conflicts
[ZBX-9820] fixed overview of items and triggers with same name and multiple hosts
[ZBX-10466] fixed event selection by trigger ID
[ZBX-7422] fixed LLD discovery rule list showing 0 instead of blank space in interval column for trapper and SNMP trap items
[ZBX-10316] fixed the regular expression preventing from adding web scenario steps
[ZBX-10497] fixed proxy crash when processing metadata updates of log[] or logrt[] items
[ZBX-10257] changed VMware items to become not supported if no VMware collector processes are started
[ZBX-10262] fixed item.update modifying "delta" field for a templated item
[ZBX-10318,ZBX-10517] added validation of vsize and hsize parameters in screen.create() and screen.update() methods
[ZBX-10318,ZBX-10517] fixed validation of screen elements position in screen.create() and screen.update() methods
[ZBX-10318] more secure removing of the screen columns and rows in GUI
[ZBX-10086] restored old behaviour - do not disable core dump if compiled without encryption support
[ZBX-10459] fixed compilation error with libxml2 versions before 2.7.0
[ZBX-10372] fixed searching of network interface statistics in Solaris kstat
[ZBX-4842,ZBX-10532] improved auditing of maintenance API operations
[ZBX-10431] fixed net.tcp.listen on Linux when using netlink interface to obtain socket data; thanks to Andrey Melnikov for patch
[ZBX-9700] fixed API receiving null and false instead of an array in method parameters
[ZBX-10379] added context for text strings 'Filter' and 'Subject'
[ZBX-10360] improved description for 'fuzzytime' trigger function in expression helper
[ZBX-9659] changed setup condition for checking always_populate_raw_post_data
[ZBX-10485] fixed database upgrade crash on attempt to substitute old-style comparison operators in empty trigger expressions
[ZBX-10422] fixed layout of the history tables
[ZBX-10386] fixed slideshow refresh rate
[ZBX-10369] fixed unexpected deleting of screen items in screen.update API method
[ZBX-10342] fixed item value not being cached by value cache if its timestamp seconds matches the oldest cached value timestamp, but the nanoseconds value is less
[ZBX-10221] fixed MySQL transaction handling when execute query fails
[ZBX-4894] fixed fping 3.x source IP option detection
[ZBX-10429] fixed expression evaluation when a negated macro or function has a negative value itself
[ZBX-10356] fixed user media form "send to" and "period" fields having incorrect "maxlength" property
[ZBX-10320] fixed NFS based VMware datastore statistics
[ZBX-10248] moved processing of zabbix[host,,items*] internal items to server if the host is monitored by a proxy
其他版本改进记录，以及详情，请看这里。