26.1.0 - Release Notes - Micetro

Micetro Release Notes
ft:locale
en-US
Product name
Micetro

June 4, 2026

New features

  • Crossover High Availability (xHA) for MDDS appliances: xHA is now supported on Micetro DDS (MDDS) appliances. xHA enables two appliances to function as a single appliance. Thus, if one of the appliances fails for any reason, the other takes its place and continues providing services, ensuring uninterrupted operation with zero downtime. For more information, refer to Crossover High Availability (xHA)
  • Kea DHCP 3.0 support: Micetro supports Kea DHCP version 3.0. For Kea 3.0, the Kea Control Agent is optional and it is possible to communicate directly with the DHCPv4 and DHCPv6 Kea services. For customers already using Kea, their current setup will not be affected. It's important to note that the "hub and spoke" failover model for Kea is not supported. For more information about the new Kea agent, refer to Agents for Kea services
  • Managed identities in Azure: Micetro supports authentication using managed identities on Azure services, instead of secrets, certificates, or other forms of authentications. Managed identities remove the need to manage or rotate credentials, as an access token is provided on demand. For more information, refer to the Azure section of Adding cloud services
  • Overlapping networks on cloud services: Micetro can now synchronize AWS and Azure services with overlapping subnets. When added or synchronized, these networks are created as separate ranges

Improvements

  • Accessibility compliance: Micetro was evaluated against the success criteria for Web Content Accessibility Guidelines (WCAG) level A and AA, and is systematically working towards full compliance with WCAG Level AA guidelines. For more information about Micetro's compliance with accessibility standards, refer to Accessibility in Micetro
  • Account lockout policy and application security: To prevent unauthorized access to application user accounts, the throttle timeout upon failed login attempts now increases exponentially until a maximum of thirty (30) seconds. More information and recommendations about web server best practices are provided in Installing the Micetro Web Application on Windows and Installing the Micetro Web Application on Linux
  • API keys: You can now use API keys for Micetro internal user accounts to authenticate and automate access to the Micetro API. For more information, refer to API keys
  • AWS region ignore list: You can now limit the number of AWS regions queried by Micetro by specifying a list of regions to ignore during synchronization when adding or editing a service. Region restrictions can be made across a service or limited to individual account IDs (KI-025704)
  • DHCP scope size: It's now possible to create DHCP scopes as large as /8. Previously, the maximum size of a DHCP scope created in Micetro was /16 (KI-025555)
  • External cloud subnet deletion: Added a system setting to determine how Micetro handles a cloud subnet that is deleted externally. Micetro can either delete the range or keep it as a regular IP address range, avoiding duplicate ranges when an equivalent range already exists.
  • mmWSClient.ps1 cookie support: Updated mmWSClient.ps1 to allow cookie usage when a session uses an API gateway or load balancers (KI-026760)

Bug fixes

  • Appliances are now displayed correctly in the data grid (KI-027122)
  • Client classes are now correctly assigned on address pools in Kea High Availability (KI-025743)
  • Configuration files installed by the micetro-web-application package now have the correct file permissions (KI-026845)
  • Default permissions on the rndc.conf file for an MDDS appliance are now sufficient for snmpd to read it (KI-026597)
  • Fixed an issue in which the DNS agent experienced a segmentation fault on SUSE Linux 15 when using the -v, -vv, and -h parameters with mmremoted (KI-027017)
  • Fixed an issue in which releasing a DHCP lease from a Microsoft DHCP failover scope resulted in DHCP JET database errors (KI-026762)
  • Fixed an issue in which secondary IP addresses on eth0 were deleted after adding a static route through the Web Application (KI-026529)
  • The service management Synchronize task is now available if either the DNS or IPAM modules are defined in the environment (KI-026785)
  • Fixed an issue in which upgrading MDDS appliances to version 9.6.1 or 25.1.0 resulted in the modification of iptable rules (KI-026781)
  • Fixed an issue in which upgrading Micetro Central to version 25.2.0 resulted in a table mismatch for mm_filters and a consequent database error. If the mm_filters table still exists after upgrading to v25.2.0, please delete it (KI-026894)
  • Fixed an issue that caused server/services to show (NULL) values in the Swagger documentation and SOAP API WSDL for the Micetro Web Service running on Linux by changing the configuration for mmws for Apache2 (KI-026931)
  • Fixed an issue that caused the action of adding IP addresses to an interface on an MDDS appliance to fail (KI-026410)
  • Fixed an issue that caused the DHCP agent to incorrectly parse IPv6 addresses on failover relationships on Kea services (KI-026974)
  • Fixed an issue that caused the rsync.log file to increase significantly in size due to the absence of a log rotation configuration (KI-027059)
  • Fixed an issue that caused zone modifications to return an "Unexpected null element" error (KI-026802)
  • Fixed an issue that changed the ownership of the current working directory when extracting the Micetro Central installer for Linux (KI-026749)
  • Fixed an issue that occurred when updating Azure secrets that expired (KI-027046)
  • Fixed an issue that prevented updates to basic authentication information for some Kea servers (KI-026872)
  • Information for a DHCP reservation is now updated in all relevant places when the reservation is edited (KI-026503)
  • The IPAM data grid now properly displays IP address in large failover scopes when a certain number is reached (KI-026480)
  • It's now possible to create CNAME records referring to the zone apex in the Web Application (KI-026963)
  • It's now possible to delete failover relationships in which one of the peer servers is not in Micetro (KI-026928)
  • License expiration and restriction warning messages are now only displayed to the administrator user (KI-026718)
  • The ping response status indicator is now correctly displayed when using the Ping IP address function (KI-026690)
  • The REST API now only returns data specific to the current organization, instead of all for organizations (KI-026836)
  • Updated the documentation about failover and High Availability for ISC Kea DHCP services. Refer to the Kea DHCP High Availability section of the Micetro Admin Guide (KI-026722)
  • Users without administrator roles and permissions can now schedule reports (KI-026467)
  • When adding a related DNS record from the IPAM page, the Web Application no longer claims that a hostname is invalid if the user enters the fully qualified name (FQDN) instead of selecting a zone from the dropdown (KI-026844)
  • Zones using "master"/"slave" terminology are now resolved as "primary"/"secondary" when generating reports. If old report definitions refer to "master"/"slave", they will break. We recommend creating them anew with the terms "primary"/"secondary" (KI-026807)

Deprecations

Note: When a feature deprecation is announced, the version upon announcement will be the last version in which that feature is officially supported. A feature may continue to work in future versions as long as the code is present within Micetro but this is not guaranteed, as the code is not officially maintained.
  • The Kea configuration preferences keaControlAgentPort and keaControlAgentHost have been deprecated and will be removed in a future version. You can specify arbitrary port numbers as part of the hostname when adding a Kea service to Micetro
  • The Micetro installer requires Python 3 and no longer supports Python 2
  • Support for Kea 2.4 has been deprecated. This service reached its end of life in Q2 2025, but support for it was maintained in Micetro while work to add support for Kea 3.0 was in progress. Since Kea 3.0 was released in this version, support for Kea 2.4 is deprecated
  • Support for the Native Client 11 OLE ODBC driver (sqlncli11.ll) has been deprecated for SQL Server on Windows. Customers using this driver should download and install the latest ODBC driver for SQL Server from Microsoft
  • Support for PostgreSQL 13 has been deprecated, as this database is not supported by the vendor as of November 13, 2025
  • Support for Ubuntu 16.04 LTS has been deprecated, as Ubuntu ended its expanded security maintenance support for this OS version in April 2026

Breaking changes

  • It is not possible to make a connection between Micetro Central and the agents if there is more than a five (5) minute clock skew difference between the servers on which they are hosted. Use Network Time Protocol (NTP) to make sure that the clocks are synchronized.