3.4.2 (2021-12-20)


  • MQTT compression for slow connections (notifier option “bulk_compress” to compress bulk MQTT state payloads and controller option “compress” to compress API calls)

  • PSRT notifiers

  • CLI client SSL verify is now on by default. To suppress SSL certificate verification, manually set URL as “!https://…”

  • State registry keys are not auto backed up any longer

  • New API method “check_item_access”

  • Custom suicide timeouts

  • Poll delay allowed to be set to 1 microsecond

  • Fix for UDP notifier data frames longer than 65K

  • MSAD authentication with multiple domains

  • Configurable registry max start wait parameter

  • File notifiers (NDJSON and CSV)

  • Python 3.10 support

  • Alpine Linux 3.15 support


  • new rules option: “block_on_exec” (blocks decision matrix until a macro is completed)

  • decision matrix rule indexes (speeds up rule processing, auto-activated)

3.4.1 (2021-09-06)


  • fix: recombined ACLs speed tuning

  • fix: db updates on-exit correct transactions commit/rollback

  • fix: MQTT auth in setup, check-mqtt

  • item states can be kept in the crash-free registry

  • controller PIDs in “test” command (requires master key)

  • launch pptop directly from eva-shell

  • new API method “restart_notifier”

  • stricter MQTT notifier tests, pingers restart notifiers if failed

  • dump “-m” option to create minimal dumps on large systems

  • new API method “get_exceptions”, allows to get last 100 server exceptions even if they are disable in logs

  • IEID phantom state - when a remote controller is disconnected, its items have IEIDs [0,0]

3.4.0 (2021-07-07)


  • fix: correct backups of symlinked directories

  • fix: PVT backup

  • fix: “dump” on Python 3.9.5+

  • Configs and runtime data moved to crash-free YEDB-based registry

  • Next-generation event replication engine

  • Python virtual environment directory renamed to “venv”

  • plugins and custom drivers / extensions moved to “runtime”

  • InfluxDB v2 support (v1 API via dbrp and v2 API)

  • TimescaleDB support

  • “connected” property of the remote items in LM PLC and SFA

  • UDP Notifiers

  • LURP event replication protocol

  • Notifier event buffering

  • “eva backup restore” now stops / starts all components automatically if runtime folder is restored.

  • new API method: registry_safe_purge (clears registry trash but keeps broken keys)

  • “ssl-force-redirect” option for WebAPI (GET methods only)

  • new feature quick setup/remove: ssl, node_name

  • filter log records by regex

  • Plugins API v3: “handle_api_call”, “handle_api_call_result” method to intercept API calls

  • client ids and “get_neighbor_clients” API method (requires EVA JS Framework 0.3.24+)

  • notifier frame counter and online info with “notifier list” CLI command

  • Alpine Linux support (3.13+)

  • OWFS feature installs libow from source if no package exists

  • Built-in PyPi mirror option to forcibly download sources of all modules

  • “auto-save” option, auto-save is on by default

  • “pip_install” function in core scripts automatically appends modules to venv config


  • item “update_delay” property is returned back

  • unit actions check value ranges if defined

  • “randomize” and “increment” auto modify for virtual sensor driver

  • data puller states, data pullers can be created / destroyed without the controller restart, new API methods “create_datapuller”, “destroy_datapuller”

  • Number type support in “get_modbus_slave_data” API function and “modbus-slave get” CLI commands

  • customizable default configuration for units and sensors


  • Discover controllers as static

  • customizable default configuration for lvars


  • Locale files can be stored in both “pvt” and “ui”

  • Custom UI error pages

  • Deployment error codes explanation

  • “reboot_controller” special deployment API function

  • Serving public and private structured data from EVA ICS Registry

  • Discover controllers as static

Removed and deprecated

  • deprecated: running EVA ICS controllers under different users

  • supervisord support is no longer out-of-the-box, however control scripts still accept the corresponding settings (will be removed in 3.5)

  • <controller>-control scripts are removed. Use “eva <controller>” instead.

  • mailer configuration unified for all components

  • removed “nodename” option of eva-shell.ini

3.3.2 (2021-03-01)


  • RedHat Enterprise Linux 8 is now officially supported

  • fix: hosts_allow / hosts_assign in JRPC calls

  • fix: cmd wait delay

  • fix: allow ACL OID groups without masks

  • fix: test command don’t report number of active threads any more for API keys without “sysfunc” permission

  • fix: JSON logging

  • fix: improved stability of controller pools

  • deprecated: RESTful and direct API, including CS_EVENT_API in Core scripts

  • 1-Wire OWFS libraries are now optional by default

  • Python 3.9 support

  • local mirror feature (mirroring EVA ICS repo and PyPi)

  • packages deployment

  • “feature setup/remove” - execute common setup tasks with a single command from EVA shell.

  • “value” field in state and history databases increased to 8192 bytes

  • cmd API function accepts args as a list

  • cmd API function accepts STDIN data

  • xc/cmd moved to runtime

  • file get/put functions support of binary data

  • install option “–skip-venv”. “–skip-check” no longer skips venv building

  • deep code audit and tons of bug fixes

  • Core scripts:
    • new event CS_EVENT_SYSTEM (invoked on startup / shutdown)

    • new event CS_EVENT_RPC (replaces deprecated CS_EVENT_API)

    • new event CS_EVENT_PERIODIC

    • logger object

  • Core Plugins API v2, new functions:
    • create_db_engine

    • format_db_uri

    • get_thread_local

    • has_thread_local

    • set_thread_local

    • clear_thread_local

    • sendmail

  • “set_user_password” SYS API function now allows logged in users to change their passwords

  • “list_tokens”/”drop_tokens” API functions

  • state_history API function can return data for disconnected / deleted items

  • new argument for state_history: z (time zone)

  • update with pre-downloaded tarballs

  • mailer feature available in all controller types (used by core plugins)

  • “cdata” (custom data) API key field

  • “file_put” method automatically creates required directories

  • “shutdown_core” method now executes background shutdown, plus has got an extra option “t” to specify shutdown delay (useful for MQTT API call)

  • “import_module” function in cloud deployment and device template files

  • “history” CLI command bar charts output

  • “watch” CLI command

  • “slog” CLI command (displays state log)

  • JSON RPC additionally accepts requests to the root URI (required by some clients), accepts and trying to fix malformed requests


  • Active Directory credentials caching

  • user ACL combining

  • items_deny / groups_deny key ACL properties

  • Read-only mode for tokens, “set_token_readonly” API function

  • MQTT notifiers: ping interval to auto-restore connection

  • MQTT notifiers: subscribe_all option

  • db notifiers: simple cleaning

  • signed releases


  • fix: Modbus/UDP (server) packet processing

  • fix: Modbus serial custom byte size

  • fix: update_if_action logic

  • deprecated: old format of device templates

  • deprecated: multi-update scripts

  • deprecated: direct eva.uc.modbus import in Modbus PHIs

  • deprecated: direct eva.uc.owfs import in OWFS PHIs

  • data pullers

  • DriverAPI v10: Modbus and OWFS helper tools

  • UC API: new function “state_log”

  • auto_off unit state processor can be cancelled / modified while running

  • “server cleanup” CLI command (cleans state db)

  • new device template format (equal to IaC deploy)

  • default timeout for Modbus / OWFS reduced to 1s to avoid critical events

  • unit MQTT control / update commands can be sent in JSON

  • strict device deployment files schema check (new format only)

  • Modbus virtual port API methods and CLI data types (u16, i16, u32, i32, u64, i64, f64) and bit getters / setters


  • fix: “out” variable is now correctly set if macro raises an exception

  • new config option “plc/use_core_pool”

  • LM API: new function “state_log”

  • LVar variable logic: normal (default) or simple

  • SSL, TLS and SMTP auth support for mailer

  • macro function “cmd”: new argument “stdin_data”

  • macro function “sha256sum”

  • macro function “get_directory”

  • decision rules prop “for_prop_bit” to check individual bits

  • CLI/API option to auto-enable created rules/jobs

  • CLI: quick creation of rules with no condition

  • LVar deletion by group (“destroy_lvar” API method and CLI)

  • Cache remote state for LM PLC items


  • SFA API: new function “state_log”

  • PVT serving as /pvt/path/to/file

  • File uploads

  • connected controllers in “test” API method ($eva.server_info.connected in EVA JS Framework)

  • data serve as locale support

  • cloud deploy: “status” and “value” props in deployment files

  • cloud deploy: trigger item update after deployment

  • cloud deploy: module uploads and binary files support

  • cloud deploy: skip busy drivers/PHIs during undeployment

  • cloud deploy: skip existing items during deployment (optionally)

  • cloud deploy: local functions (“sleep”, “system”)

  • cloud deploy: local cloud manager API calls and “local” controller section

  • cloud deploy: file masks in upload-remote

  • cloud deploy: accepts deployment YAML from STDIN

  • cloud deploy: custom before/after deploy timeouts

  • cloud deploy: API keys and local user accounts deployment

  • strict device deployment files schema check

  • cloud updates

3.3.1 (2020-08-26)


  • fix: auth tokens are now always correctly destroyed at logout

  • new generic extension engine: restarting controller after PHI, LPI & LM PLC Ext module updates is no longer necessary (just load the new module)

  • “interval” notifier property allows to schedule item state telemetry notifications with the specified time interval.

  • MS Active Directory authentication support

  • custom primary log formats (e.g. JSON logs)

  • extended API logging, ACI (API Call Info) core object, “api_log_get” SYS API function

  • Core plug-ins

  • JSON notifiers “list” method to send all data in list format


  • Added “enable” flag in API and CLI to enable unit actions / sensor updates right after creation.

  • Driver API 9: PHI & LPI mods config validation, Ethernet/IP client helper


  • Extension API 7: config validation


  • supervisor features: API lock/unlock, broadcast messages

  • SFA templates “get_aci” and “import_module” functions

  • before/after deploy API calls can be skipped in case of failure

3.3.0 (2020-02-05)


  • Faster node interconnect protocol (via msgpack)

  • MQTT inter-connect API encryption strength increased to AES256

  • Core workers are now async to improve system performance

  • Controller auto-discovery in local network via UPnP

  • Core scripts


  • Fixed PHI update timers

  • push_phi_state API method

  • Driver API 8: timeout helper, PHI state push

  • item “update_delay” property is removed


  • Fixed cycle timers. As new cycle algorithm has near 100% precision, “avg” is not reported any longer. “value” field in API response is removed as well.

  • Extension API v6: persistent data storage

3.2.5 (2019-10-03)


  • Google Cloud IoT Core support

  • fix: startup timeouts


  • Rule chill-out logic corrected

Cloud manager

  • First public beta

3.2.4 (2019-07-30)


  • Core and controller interconnect stability improvements

  • IOTE cloud support

  • InfluxDB integration

  • Prometheus integration

  • Logging to syslog

  • Autocompletion files for ZSH

  • server events

  • CLI edit command for controller server config


  • Driver API 7: shared namespaces


  • Direct use of macro functions (as @function)

  • rule, job and cycle creation with human readable input


  • edit ui / edit pvt commands in EVA shell

3.2.3 (2019-06-24)


  • MQTT server is not required anymore for local host/network installations, controllers can exchange information in real-time via P2P sockets (turned on automatically if MQTT server for controller is not specified).

  • state_history method can now return chart image (SVG/PNG)


  • get_phi_ports API method - get ports of loaded PHI

  • phi_discover API method - search for equipment supported by PHI module

  • Modbus values reported to UC slave can now be automatically converted to signed and divided (or multiplied).


  • set_job_prop macro function

  • cycle can now run macros with args and kwargs


  • easy-setup now creates default user (operator)

  • “as” parameter for .json and .yml files changes their format on the flow

  • JS SFA Framework is now deprecated. Use EVA JS Framework instead: https://github.com/alttch/eva-js-framework

3.2.2 (2019-05-21)


  • Driver API 5: “unload” method, unit values in PHIs.


  • scheduled jobs


  • evaHI integration

  • transparent authentication on secondary UI pages

3.2.1 (2019-04-16)


  • fixes: small fixes in CLI

  • fixes: code refactoring, performance optimization

  • EVA ICS now loads 3rd party libraries from virtualenv which increases system stability as only tested version of libraries are used.

  • Support for AWS IoT

  • Modbus slave register monitoring functions

  • increment/decrement functions for lvars and shared macro variables

  • read-only permissions for API keys

3.2.0 (2019-04-02)


  • Core, API and CLI performance improvements

  • fixes: correct backup/restore if configuration folders are symlinks

  • fixes: correct restore if –runtime flag is specified

  • fixes: LM PLC locking problems

  • notifier performance improvements

  • CLI improvements

  • private Cloud support (nodes run API calls via MQTT)

  • automatic node discovery

  • license changed to Apache License 2.0

  • new SYS API function: shutdown_core

  • controller/node autodiscovery

  • enterprise layout is now default item layout

  • using item ids in API key properties is not allowed any longer in enterprise layout, item oid (type:group/id) must always be specified

  • X-Auth-Key header authorization support

  • JSON RPC 2.0 API

  • JSON notifiers will send JSON RPC 2.0 notifications to the target uri, if method param is set

  • RESTful API

  • API session tokens

  • Database support for MySQL and PostgreSQL

  • supervisord support


  • warning: API function set_driver renamed to assign_driver

  • new API functions: list_device_tpl, set_driver_prop, set_phi_prop

  • 1-Wire OWFS support (virtual buses, PHIs), OWFS API functions

  • Modbus slave support

  • Driver API v4


  • new API functions: enable_controller, disable_controller, matest_controller, set_ext_prop

  • kwargs in macros (kwargs dict, plus all keyword arguments are available as variables)

  • set_rule_prop now accepts “condition” and “for_oid”

  • cycles, cycle control API and macro functions

  • removed deprecated dm_rule* ACL

  • removed deprecated get/post functions (use requests.get/post instead)

  • Extension API v4


  • new API functions: enable_controller, disable_controller, list_cycles

  • SFA framework: code optimization, cycle states (warning: some functions are incompatible with previous version, use eva_sfa.3.1.js library or call the functions in new format only, look UPDATE.rst for more info)

  • SFA framework: data exchange optimization with eva_sfa_state_updates variable

  • removed deprecated dm_rule* ACL and rule control functions

  • SFA templates: request now contains full request object

  • SFA templates: new function api_call (call any SFA API method)

Deprecated (will be removed in 3.3.0)

  • macro “argv” variable (replaced with “args”)

  • PHP API client no longer supported (use JSON RPC)

  • removed deprecated HTTP/POST and HTTP/GET notifiers

3.1.1 (2018-10-22)


  • fixes: interactive prompt behavior

  • fixes: API client libs check result of “phi_test” and “phi_exec” functions

  • history for interactive shell mode (to turn off set EVA_CLI_DISABLE_HISTORY=1 system environment variable)

  • new management CLI: eva-shell (interactive by default)

  • backup/restore operations (with eva-shell)

  • dynamic API key management via CLI and API


  • fixes: device commands in enterprise layout

  • performance improvements

  • “update” command without params starts item passive update

  • batch commands in UDP API (separated with new line)

  • encryption and authentication in UDP API

  • custom packet handlers in UDP API

  • new API function: “test_controller”, detailed info in “list controllers”

  • MQTT tools for PHIs

  • test-phi CLI tool


  • fixes: double quoted macro arguments in DM rules

  • fixes: gain param in “tts” and “audio” extensions

  • “action_toggle” macro func, “toggle” acts as an alias for unit oids

  • “shared” and “value” macro funcs default return values

  • new API function: “test_controller”, detailed info in “list controllers”

  • new LPI: usp (unit single port)

  • test-ext CLI tool


  • new API function: “test_controller”, detailed info in “list controllers”

  • SFA framework fixes and improvements

3.1.0 (2018-09-01)

UC drivers, device templates, state history, charts and other new features


  • working with locks now require allow=lock apikey permission

  • new notifier type: db, used to store item state history

  • SYS API functions: notifiers, enable_notifier, disable_notifier. the enable/disable API functions change notifier status only temporary, until the controller is restarted

  • MQTT SSL support

  • JSON notifiers. GET/POST notifiers are marked as deprecated and should not be used any more.

  • exec function (cmd, run) string arguments split with ‘ ‘ now support the spaces inside (e.g. ‘this is “third argument”’)


  • new uc-cmd cli

  • old uc-cmd renamed to uc-api

  • UC drivers: logical to physical (LPI) and physical (PHI) interfaces

  • native Modbus support (drivers only)

  • device templates

  • new function “state_history” in UC API

  • EVA_ITEM_OID var in the environment of UC scripts

  • action status label (case insensitive) may be used instead of number, if the label is not defined, API returns 404 error

  • new key permission: “device”, allows calling device management functions.

  • uc-tpl device template validator and generator (alpha)

  • unit and sensor items now have physical location. If location is specified as coordinates (x:y or x:y:z), loc_x, loc_y and loc_z props become available

  • UC EI now should be enabled/disabled in uc.ini


  • new lm-cmd cli

  • old lm-cmd renamed to lm-api

  • macro extensions

  • macro function “unlock” now return false if the lock hasn’t been locked or doesn’t exist

  • unlock macro function may throw an exception if the controller forbids its functionality, in case the controller has no master key defined

  • new functions “state_history” in LM API and “history” (equivalent) in macros

  • new functions: status, value, nstatus, nvalue with oid support

  • new DM rule events: on nstatus, nvalue change (for units)

  • device management functions: “create_device”, “update_device”, “destroy_device”

  • “set_rule_prop” macro function

  • “alias” macro function

  • rule filter in LM EI

  • LM EI now should be enabled/disabled in lm.ini


  • fixes: rule management functions

  • new sfa-cmd cli

  • sfa-cmd renamed to sfa-api

  • new function “state_history” in SFA API and SFA Framework

  • all functions now accept item oids

  • “result” function returns the result of macro execution if macro action uuid or macro id (in the oid format) specified

  • state API function accepts “full” parameter

  • full SFA states now have item descriptions and status labels (for units)

  • SFA API groups function now accept “g” parameter to filter group list (with MQTT-style wildcards)

  • SFA rpvt function to load documents from remote servers

  • SFA cvars are automatically available in SFA Framework app. Note: SFA cvars are public and may be obtained with any valid API key

  • SFA Framework is now jQuery 3 compatible, included jQuery lib updated to 3.3.1

  • SFA Framework item states now also have description and status labels fields

  • eva_sfa_groups function, returns item groups list (with optional filter)

  • eva_sfa_chart function, displays item state charts

  • eva_sfa_popup function, displays popups and info windows

  • new ws event: server restart and eva_sfa_server_restart_handler in a framework. SFA API function “notify_restart” allows to notify clients about the server restart w/o actual restarting (e.g. when restarting frontend)

  • jinja2 templates for SFA ui and PVT files (all files with .j2 extension are served as templates). index.j2 has more priority than index.html

API Client

  • new API function call result: “result_invalid_params” (11)


  • new notifier management CLI (old CLI tools available in legacy folder)

  • watchdog to test/automatically restart controllers in case of failure

  • oid support in API keys

  • other stability improvements

3.0.2 (2018-06-23)

Bugfix release, some new urgent features, stability improvements

EVA documentation is now available in reStructuredText format and at https://eva-ics.readthedocs.io

Emergency interfaces

  • fixes: correct display of long item names

  • fixes: various bug fixes

  • refresh buttons on item pages

  • LM EI: reset button and expire timer in LM EI show/hide when prop changed


  • fixes: remove empty controller group when all objects are deleted

  • fixes: remote items correctly display state in list_remote

  • fixes: disabled sensors and lvars should not react to expiration

  • each set_prop call now logs what’s actually changed

  • added item oid (type:group/item_id) - reserved for the future releases

  • added stop_on_critical option in config (default: yes), server will be restarted via safe-run if critical exception occur

  • uptime in dump and test API function, last 100 exceptions are now stored in a dump, dumps are now compressed with gzip

  • API functions now support JSON requests


  • action_toggle function to quickly toggle status of simple units


  • list_remote returns array + controller_id property instead of dict

  • result function in macro api. terminate and result function accept action uuid as a param

  • on_set lm rule (status changed to 1)

  • new LM API and macro functions: clear (set lvar value to 0), toggle (toggles lvar value between 0 and 1)

  • cmd macro function now accepts full controller id (uc/controller_id) as well as short

  • new macro functions for file management: ls, open_oldest, open_newest


  • fixes: dm_rule_props acl in SFA

  • list_remote returns array instead of dict + controller_id property

  • list_macros contains now controller property

  • append_controller now tries to autodetect controller type if no type is specified

  • sfa pvt access logs

  • reset, toggle, clear, action_toggle, result and terminate by uuid funcs in sfa & sfa framework

  • reload_clients command and sfa framework reload event handler

  • eva_sfa_expires_in function in a framework to work with timers

  • log processing functions in a framework

  • wildcard masks in eva_sfa_state and eva_sfa_register_update_state


  • easy-setup.sh - an interactive/automatic script to quickly set up the current host

  • ability to run controllers under restricted user

3.0.1 (2018-02-21)

Minor release with some urgent features


  • EVA_ITEM_PARENT_GROUP variable in script ENV which contains the parent group of the item

  • cvars now can be set as global or assigned to the specified item group i.e. ‘VAR1’ - global cvar, available to the all scripts, ‘group1/VAR2’ - variable available only to scripts from group ‘group1’ (as ‘VAR2’), ‘group2/VAR2’ - variable available only to group ‘group2’ (also as ‘VAR2’). Used by UC scripts to let one script manage different items


  • ‘update_delay’ prop - item passive update may start with a delay to prevent multiple updates running simultaneously producing high system load

  • ‘clone’ function in UC API and uc-cmd to clone items

  • ‘clone_group’ function - clones all matching items in a group

  • ‘destroy_group’ function destroys all items in the specified group


  • item id in LM rules match by simple mask (i.e. ‘*id'* or ‘id'* or ‘*id’)

3.0.0 (2017-10-19)

First public release