[FEATURE] upgrade to langchain v0.3.1

[Seven2Nine]

Feature Area

Other (please specify in additional context)

Is your feature request related to a an existing bug? Please link it here.

NA

Describe the solution you'd like

upgrade to langchain v0.3.1

Describe alternatives you've considered

No response

Additional context

Description Are there any plans to upgrade to langchain v0.3? Otherwise any tips on how to solve dependency conflicts as crewai required langchain<0.3?

issue langchain-community 0.3.1 depends on langchain<0.4.0 and >=0.3.1 crewai 0.63.6 depends on langchain<0.3.0 and >=0.2.16

Willingness to Contribute

No, I'm just suggesting the idea

[joaomdmoura]

I think we should be able to upgrade pretty easily now, will give it a try

[llFireHawkll]

@joaomdmoura Did you get a chance to release an update on the langchain v0.3.1?

[motobob]

after v0.60 bump and #1333 and overall migration to LiteLLM it would be nice to remove langchain constraint at
https://github.com/crewAIInc/crewAI/blob/main/pyproject.toml#L17

feels this is in the way:

Because embedchain (0.1.122) depends on langchain (>0.2,<=0.3) and no versions of embedchain match >0.1.122,<0.2.0, embedchain (>=0.1.122,<0.2.0) requires langchain (>0.2,<=0.3). So, because crewai depends on both langchain (^0.3.1) and embedchain (^0.1.122), version solving failed.

cause of this https://github.com/mem0ai/mem0/blob/main/embedchain/pyproject.toml#L96

[motobob]

embedchain was updated.

so the follwojng for both crewAi and CrewAI-tools would close the issue and add sanity to deps.

langchain = "^0.3.1"
embedchain = "^0.1.123"

[motobob]

sending here a PR here with poetry.toml

langchain = "^0.3.1" 
crewai-tools = { version = "^0.12.2", optional = true }
embedchain = "^0.1.123"

should close the issue and bring sanity to deps.

@joaomdmoura would appreciate some assistance with finishing this one up. Thank you

[jordanrfrazier]

Hi all - we're interested in this as well so we can pull in CrewAI as we update our langchain dependency. Are there any blockers that would delay this getting in for some time?

[erichare]

Just bumping this to check if there's any further assistance needed to finish this up, happy to help if so. Thanks all!

[dbubel]

~~Not sure if this is exactly the right path forward, but bumping these deps as you described @motobob. Maybe this will get traction. https://github.com/crewAIInc/crewAI/pull/1459~~

[motobob]

suggest closing this as 0.74.2 of crewAI and 0.13.2 of crewAI-tools now allow coexistence with langchain 0.3.4. validated in my project.

tnx @erichare @joaomdmoura