# Changes in Release 1.3

## New Functionality in Release 1.3.3

Release 1.3.3 is a bug fix release. New functionality will be added in release 1.4.0

## New Functionality in Release 1.3.2

* [Mikrotik RouterOS version 7](../platforms.md) support by Stefano Sasso, including IPv4, IPv6, VLANs, VRFs, OSPFv2, OSPFv3, BGP, MPLS, MPLS/VPN, and libvirt [box building recipe](../labs/routeros7.md)
* [Nokia SR OS support](../platforms.md#supported-configuration-modules) for VLAN, VXLAN, EVPN, VRF, and OSPFv3 by Jeroen van Bemmel
* [OSPFv3](../module/ospf.md) on Cumulus Linux and Nexus OS
* [EVPN](../module/evpn.md) (bridging and symmetric IRB) on Nexus OS
* EVPN VLAN bundle service on SR Linux
* EVPN transit VNI [shared between VRFs](../module/evpn.md#integrated-routing-and-bridging)
* [Define VLAN and VRF parameters in groups](../groups.md#using-group-node-data-with-vrfs-and-vlans)
* [Disable OSPF, EIGRP, or IS-IS](routing_disable) on a link or an interface 
* [Disable EBGP sessions](routing_disable) on a link or an interface
* EVPN over IPv6 LLA sessions on Cumulus Linux and FRR
* BGP local-as on EBGP VRF sessions on Cumulus Linux
* Configurable BGP address families on VyOS and Dell OS10
* Static IPv4/IPv6 address on *containerlab* management network

## New Functionality in Release 1.3.1

* VXLAN, VLANs, VRFs, and EVPN [implemented on](platform-dataplane-support) FRR and Cumulus Linux
* [BGP local-as](../module/bgp.md#node-configuration-parameters) implemented in the BGP configuration module and supported on Arista EOS, Cisco IOS, Dell OS10, FRR, and Nokia SR Linux. BGP local-as can also be used on some platforms to turn an EBGP session into an IBGP session.
* Configurable [BGP transport sessions](../module/bgp.md#node-configuration-parameters)
* Configurable [default BGP address families](../module/bgp.md#node-configuration-parameters) supported on Arista EOS, Cisco IOS, Cumulus Linux, FRR, and Nokia SR Linux.
* FRR support for IPv6 LLA (unnumbered) BGP sessions
* New default container versions: FRR 8.3.1 and Cumulus Linux 4.4.0
* New default VM versions: Cumulus Linux (with NVUE) 5.2.0
* Per-VRF BGP router ID implemented on Cisco IOS and Arista EOS
* [Select address pools](../links.md#selecting-custom-address-pools) with 'pool' VLAN or link attribute (using 'role' attribute to select an addressing pool is deprecated)
* Add 'message' attribute to lab topology to display a 'this is how you use this lab' help message after the lab is started and configured
* Implement 'startup configuration' parameter for containerlab
* Device configuration files can be created from *netlab* templates and mapped into containers. Currently used to start FRR daemons in FRR 8.3.1 container.
* Add multiple debugging flags to debug just parts of the data transformation code

## New Functionality in Release 1.3

* [VXLAN](../module/vxlan.md) configuration module implemented on Arista EOS, Cisco Nexus OS, Dell OS 10, Nokia SR Linux and VyOS
* [EVPN](../module/evpn.md) configuration module implemented on Arista EOS, Nokia SR Linux, VyOS and Dell OS10.
* [MPLS configuration module](../module/mpls.md) got 6PE address family implemented on Arista EOS and Cisco IOS/IOS XE.
* IS-IS on VyOS
* VLAN and VRF on Cisco Nexus OS
* VRF support for Nokia SR Linux
* [Default route origination on EBGP sessions](../plugins/ebgp.utils.md)
* [gRPC installation script](../netlab/install.md) -- install all the dependencies needed to configure Nokia SR Linux with a single command
* Device-specific module requirements (example: VXLAN on Nokia SR Linux works only with EVPN)
* Complete implementation of VLAN interface on Nokia SR Linux
* Configure IPv6 hosts on Cisco IOS and Arista EOS
* Custom interface index on node-to-link attachments

## Renaming Python Package and Project Name

We renamed *netsim-tools* project to *netlab*. There is no change to the functionality, user interface (CLI commands), or documentation.

The Python package has been renamed to *networklab* which is a dependency of *netsim-tools* package. Upgrading *netsim-tools* will also install or upgrade *networklab*.

## Bug Fixes in Release 1.3.3-post1

* Don't convert dictionary keys with dots into hierarchical dictionaries when dealing with filenames
* Add eos-downloader info to docs
* Support multiple clab node parameters
* Configure link MTU on Cumulus NVUE (#592)
* Handle empty VLAN/VRF definitions in group node_data
* Change node.runtime to node.clab.runtime, add documentation 

## Bug Fixes in Release 1.3.3

* Fix VLAN **mode** precedence to match documentation
* Nokia SR Linux: fix static routes with ipv6 prefixes
* Reduce length of clab bridge-attached interface names
* Multiple fixes to RouterOS version 7 BGP templates
* Fix VXLAN link MTU on SR Linux and FRR
* Nokia SR OS: Implement policy to set next-hop-self for eBGP routes only when acting as RR
* Nokia SR Linux: Don't configure next-hop-self when acting as RR 
* Use static address on Cumulus Linux mgmt interface
* Compare subnets (not networks) when installing Linux static routes
* Rewrite /etc/hosts file in containerlab deployments
* Nokia SR Linux: Fix VXLAN learn-unsolicited for ipv6 case
* Display an error message when failing to load a module
* Nokia SR Linux: Fix ISIS template (broken after VLAN updates)
* Nokia SR OS: Fix OSPF interface structure (#543)
* **netlab initial -o** should work with subdirectories

## Bug Fixes in Release 1.3.2

* Check global- and device-specific module requirements for each node
* Control IPv6 interface state on FRR
* Pull VRFs associated with node VLANs into node data
* 'netlab libvirt package' cannot use inactivated vagrant-libvirt network
* Cumulus Linux VM does not recognize all files in /etc/network/interface.d
* Pass multiple CLI parameters to network devices with 'netlab connect'
* 'netlab libvirt package' command works  with virt-install 4.0.0 on Ubuntu 22.04
* Remove IGP parameters from a VRF l2-only interface
* Don't enable LDP on interfaces without an IPv4 address
* Use a route-map to implement IPv4/IPv6 next-hop-self on Arista EOS
* Use only valid IPv4 addresses from non-hosts as LAN default gateway
* Copying VRF-aware node attributes into interface data
* Fix routed native VLAN handling
* FRR: Upgrade to v8.3.1 broke OSPFv3 configuration
* Linux: avoid static routes to interface subnets overlapping address pools
* Normalize IP address pool strings (check pool prefixes for host bits)

## Bug Fixes in Release 1.3.1

* Cumulus Linux OSPF template would crash in VRF-only scenarios
* FRR can be used as a host (without a loopback interface)
* Copy VLAN 'role', 'pool' and 'unnumbered' attributes into VLAN member links
* Remove 'unnumbered' attribute from the final data model
* When checking device-specific module requirements, check only node modules
* Create VLAN links from a VLAN trunk before handling access/native VLAN
* Fix propagation of global/default vlan.mode attribute
* Add globally-unique ID to VRFs in case someone needs it
* Numerous SR Linux template fixes
* CL NVUE configures unnumbered interface by setting its IP address to loopback.ipv4
* CumulusLinux 5.x NVUE must use OSPF network statements
* Add dependency check for ansible-galaxy in gRPC installation script

## Bug Fixes in Release 1.3

* Cisco IOS needs **dot1q encapsulation** command on VRF subinterfaces to accept IP addresses
* *containerlab* download URL has changed
* VyOS BGP configuration syntax changed _local-as_ to _system-as_ in release 1.4.
* Use 'vyos:current' box from Vagrant Cloud
* Unnumbered BGP sessions over IPv6 LLA interfaces
* Set 'vlan.mode' to an explicit default value ('irb')
* Fix vlan.mode attribute precedence
* Don't crash when encountering VRFs without layer-3 address families