Python: pip install --upgrade --no-cache-dir agent-framework --pre does not install latest agent-framework-core (1.0.0b251120)

[edwardsjc19]

When installing agent-framework with --pre into a clean virtual environment, pip does not pull the latest pre-release of agent-framework-core (1.0.0b251120). Specifically, the installed agent-framework does not contain:

1. agent-framework-core: Langfuse observability captures ChatAgent system instructions #2316
2. agent-framework-core: Introducing support for declarative YAML spec #2002

This suggests that the agent-framework meta-package on PyPI is not depending on the latest agent-framework-core pre-release.

Steps to reproduce

python3 -m venv .venv
source .venv/bin/activate

pip install --upgrade --no-cache-dir agent-framework --pre

pip show agent-framework-core

Actual Results

pip show agent-framework-core:

Name: agent-framework-core
Version: 1.0.0b251114
Summary: Microsoft Agent Framework for building AI Agents with Python. This is the core package that has all the core abstractions and implementations.
Home-page: https://aka.ms/agent-framework
Author: 
Author-email: Microsoft <af-support@microsoft.com>
License: 
Location: /private/tmp/test_agent_framework/.venv/lib/python3.12/site-packages
Requires: azure-identity, mcp, openai, opentelemetry-api, opentelemetry-exporter-otlp-proto-grpc, opentelemetry-sdk, opentelemetry-semantic-conventions-ai, packaging, pydantic, pydantic-settings, typing-extensions
Required-by: agent-framework, agent-framework-a2a, agent-framework-ag-ui, agent-framework-anthropic, agent-framework-azure-ai, agent-framework-copilotstudio, agent-framework-devui, agent-framework-mem0, agent-framework-purview, agent-framework-redis

Additionally, verifying the observability code:

grep -n "system_instructions" .venv/lib/python3.12/site-packages/agent_framework/observability.py

Output:

179:    SYSTEM_INSTRUCTIONS = "gen_ai.system_instructions"
1123:                    system_instructions=getattr(self, "instructions", None),
1192:                    system_instructions=getattr(self, "instructions", None),
1417:    system_instructions: str | list[str] | None = None,
1443:    if system_instructions:
1444:        if not isinstance(system_instructions, list):
1445:            system_instructions = [system_instructions]
1446:        otel_sys_instructions = [{"type": "text", "content": instruction} for instruction in system_instructions]

Lines 1123 and 1192 do not include the updated Langfuse observability behavior from #2316 (capturing ChatAgent system instructions as part of the span).

Similarly, features introduced by #2002 (declarative YAML spec support) are not present in this installed version of agent-framework-core.

Environment

• OS: macOS
• Python: 3.12 (virtualenv)
• Installation: clean virtual environment, no cached wheels (--no-cache-dir)
• Command: pip install --upgrade --no-cache-dir agent-framework --pre

[SuperKenVery]

Same. I can get agent_framework 1.0.0b251120, but agent_framework_core is 1.0.0b251001.

[SuperKenVery]

Error:   × failed to solve the pypi requirements of environment 'default' for platform 'osx-arm64'
  ├─▶ failed to resolve pypi dependencies
  ╰─▶ Because agent-framework-aisearch was not found in the package registry and agent-framework-core[all]==1.0.0b251120
      depends on agent-framework-aisearch, we can conclude that agent-framework-core[all]==1.0.0b251120 cannot be used.
      And because only the following versions of agent-framework-core[all] are available:
          agent-framework-core[all]==1.0.0b251001
          agent-framework-core[all]==1.0.0b251007
          agent-framework-core[all]==1.0.0b251016
          agent-framework-core[all]==1.0.0b251028
          agent-framework-core[all]==1.0.0b251104
          agent-framework-core[all]==1.0.0b251105
          agent-framework-core[all]==1.0.0b251108
          agent-framework-core[all]==1.0.0b251111
          agent-framework-core[all]==1.0.0b251112
          agent-framework-core[all]==1.0.0b251112.post1
          agent-framework-core[all]==1.0.0b251114
          agent-framework-core[all]==1.0.0b251120
      we can conclude that all versions of agent-framework-core[all] depend on agent-framework-core<=1.0.0b251114.
      And because agent-framework==1.0.0b251120 depends on agent-framework-core[all] and only agent-framework<=1.0.0b251120 is
      available, we can conclude that agent-framework>=1.0.0b251120 depends on agent-framework-core<=1.0.0b251114.
      And because you require agent-framework>=1.0.0b251120 and agent-framework-core==1.0.0b251120, we can conclude that your
      requirements are unsatisfiable.

Searching in the repo I cannot see agent-framework-aisearch. Was it renamed to agent-framework-azure-ai-search?

---

EDIT: Indeed it was renamed 9f43108

So I guess the agent-framework-aisearch package was never published on pypi?

[eavanvalkenburg]

Indeed, there is a fix incoming, so once that's merged we can do a release, for now, just install the package you need (and not agent-framework) and I'll also have a look at how we have things setup to prevent this.

[SuperKenVery]

Hi, I think this is not solved. I still get agent_framework_core 1.0.0b251001.

As I stated before, pip (or at least pixi) tried to install the latest core, but failed because it couldn't find agent-framework-aisearch, which was renamed.

It seems that #2369 would resolve the issue, but that hasn't been released yet.