pex 2.90.3

---

2.90.3

This release follows up on #3109 in 2.90.2 and extends better isolation to --venv script shebangs
when emitting hermetic scripts (the default; only subverted by --non-hermetic-venv-scripts).

• Use more isolation in venv scripts when available. (#3110)

---

file	sha256	size
pex	ae4eb0b40a720988164589aac94f30d3d3ec2fb31fab1b3b5073ae2afc9f1b4a	5070060
pex-linux-aarch64	0a6d171601d9f5cdd17d674abb45255bc5ec2393a90f9a02d70d6f5aba2e1ac0	36826846
pex-linux-armv7l	e242d5b14fa899445e5fbde81853445d91630c0995c878f6759883726296b01f	33210345
pex-linux-riscv64	97fe5d4d7ca2df40ac0af2416d0f1258d50cf96284778b795e50bdcbd516c327	33335250
pex-linux-x86_64	c0bee1883eff942877b6af0bbf3ddc582f823ac57bf8177f4a25ffb325f4b727	42804501
pex-macos-aarch64	52aa8e2757057e1092cc919407a02f6ebd7109b8c31717d3923bb23ade39a8b4	24713261
pex-macos-x86_64	d7ac5fda3f72015785a6b85dda02074485df01aa65b894cb1911b1ebbe70271a	24871776
pex-musl-linux-aarch64	b0abd7d3f0841c8f300dc23e66366884fe69ce6136a9bfc493499ef5586fda2e	36068554
pex-musl-linux-x86_64	3a36852f5add1fff79a06acc8dfbaf03e14f769061b1465ba6b2cdcf7117cb6d	36174126

pex 2.90.2

---

2.90.2

This release fixes bugs resulting from imperfect isolation of Python interpreters by Pex. In
particular, sys.path pollution from items in the CWD is mitigated for many common use cases.

This release also updates vendored Pip's vendored certifi's cacert.pem to that from
certifi 2026.2.25.

• Update vendored Pip's CA cert bundle. (#3108)
• Further isolate Python interpreters when possible. (#3109)

---

file	sha256	size
pex	311d8eb35ad3d64e1c508b7e7ac3479e1fd40911117396f754a9914eb5faf017	5069818
pex-linux-aarch64	15113d4407e08ed072ded32d93a8a9b6743800626e50bfc5c0d455aae9413d9d	36826370
pex-linux-armv7l	982e65d0af1721ed68d38c18c3f497c3cf332c3554e8356c5a6f7011b74eeb57	33209873
pex-linux-riscv64	acea264230796bb8626a2141edfba04b923daeb4e6a9dee1929f05a24dae6463	33334783
pex-linux-x86_64	d3408c4ede29d65ec8c58dffd9b2cd089cf65ed7fc3ebfdd2da597f70ab69010	42804026
pex-macos-aarch64	5695811ec24af89aa48a71e652d88b20b03ac7b5f111295d99fc5f5be3b5ac91	24712782
pex-macos-x86_64	5f246dace9088e5d5ea8365680a316e7ef8edb3e53786203c0528c66b09ee363	24871305
pex-musl-linux-aarch64	d949c38e9cbf0fc57fc09b600b2bfdca57deb74e7fc5e00d8b76151be096928b	36068083
pex-musl-linux-x86_64	bd2b13fc97f1c9175bef654585689ef3f40d1440239eb01fbf80570780d79d75	36173642

pex 2.90.1

---

2.90.1

This release fixes a Pex caching bug when creating --layout packed PEXes and alternating between
the default (--compress) and --no-compress. Previously this could lead errors building the
packed PEX which necessitated clearing the PEX cache.

• Fix --layout packed bootstrap and wheel caches. (#3106)

---

file	sha256	size
pex	558c4761e691acef985c8b2b93c6f370833cd915406dad656adc2f23d1a364c9	5068607
pex-linux-aarch64	51ca5240605b253390bfdc78dc19b7cb28dac9b9283c5ce5b08e6381e3c32ed7	36825162
pex-linux-armv7l	be1d68a95ce2be52fb9e295d8548c11a462179a816dd44ba72dc9231f77dac09	33208663
pex-linux-riscv64	d28b3c934625542136baf78c5184f4a3c37551a72f783d35c89e3f7ecfab38c2	33333579
pex-linux-x86_64	c11461ba1baa16c5dac66d1994fe25db834ea3be3445eda59e6c1dc1e3d737a1	42802821
pex-macos-aarch64	4906d10e2ebfd24fc84cdc490595037754db607b21374227fc24723f6ece8f12	24711589
pex-macos-x86_64	88f90d3ac268f1594da4ee7c002e6827d2073825cdee463d9cb53d6fc714963a	24870093
pex-musl-linux-aarch64	0818d9ecb19a1d1e08035b07c73fd0d5896771ff42709436c0477f69673bf8aa	36066877
pex-musl-linux-x86_64	67e386ee8af90137521f2b2b71c1e9a7bf1f41b64bbea126fd82b0b04392ae6a	36172449

pex 2.90.0

---

2.90.0

This release adds support for wrapping PEP-660 build_editable to pex_build.setuptools.build
plugins and dogfoods this.

• Support wrapping build_editable in wrap. (#3105)

---

file	sha256	size
pex	b867a42d6323bee22d5fe3141ce403aab72620a4a5183284e226c5305ca87aa4	5068520
pex-linux-aarch64	d965642ad830540f43c9cb2d4df06fb621681cf3ab41fe14daa248d308312e8b	36825071
pex-linux-armv7l	11c53a4f824ca7464f86bf5cfcc852c842cdfa1d170c9d9af8972e8fc34a3e62	33208578
pex-linux-riscv64	22abc56c15d5836eafa4597a16a93f2ea14491785b201189ed34f040835304f4	33333489
pex-linux-x86_64	68f1d4550841affb77035534a0734e82b0e33bf25a3411c7d0b4a0a4fdd14ba3	42802729
pex-macos-aarch64	c31f1dadfc61c9e1c8a4c1239d6baa6ea8687964b3e8644a11a404df3216b4fb	24711498
pex-macos-x86_64	3c122cae91df932723bc4ec153f660ff497772595d4f9267c00e1bc12ebf7361	24870015
pex-musl-linux-aarch64	51351c9c221ecc6a0a76a3ca7b646cd30faab2c0deb3f8ae284a55f9ce8b5aa5	36066793
pex-musl-linux-x86_64	bbe04f2013115449710bd290e1b488579fef1c2b39eda4537483e56315648848	36172361

pex 2.89.1

---

2.89.1

This release adds better diagnostics for certain Pex filesystem interaction errors.

• Add safe_copy failure diagnostic message. (#3103)

---

file	sha256	size
pex	78c932703807b4eac73baf3680c445d290ec5f04e88a141e7ff85b96da8a041d	4982477
pex-linux-aarch64	f37eb2f28e4d0460ca8678d85f34b5ff6c69f1251c69b7d30cfb687d7e62e13a	36739035
pex-linux-armv7l	7ffdcf602983f7be20815c7d11eeff2e358a8f240bf41655395d35b9a823ed4b	33122533
pex-linux-riscv64	8bb6e4b71d4bd30e1d38ba8dac2999c8a66c5d1b6a9f4747eb303769f6950a9a	33247446
pex-linux-x86_64	3041653b186caafd7261710b395dd7c7dac1ff9be11285457259084bbe331e15	42716690
pex-macos-aarch64	f1e52087ace3b6639f3d21e318bb46467c6848ae3c973fa0e54e4486a08604c0	24625453
pex-macos-x86_64	b106a50311ff1ef1cac2c75293e1b0f938fc76b56e373e3cec2d16bdb6899459	24783967
pex-musl-linux-aarch64	eadef83096f364ef36a1df12e796b4ef2f3ed92a3cdd7e538a18a47c7eeb245c	35980751
pex-musl-linux-x86_64	8ab12e7a664f839d413a9a05d60048b53b9dd193b2a9469344ac314b898031fb	36086314

pex 2.89.0

---

2.89.0

This release exports the path of the installed .desktop file as the DESKTOP_FILE environment
variable for commands in --scie-icon and --scie-desktop-file PEX scies. The DESKTOP_FILE
path may not exist, but if it does it can be used to implement desktop application uninstallation
in the PEX scie application code.

• Export DESKTOP_FILE for PEX scie .desktop apps. (#3100)

---

file	sha256	size
pex	3d717550b83c4476a76787e274a9fe7322e7543de3c4ea8adf7cd13b1a06e59a	4981558
pex-linux-aarch64	dcacc6b359df63907c1c220124daa48dec974f2188d519e45fb9e839d75d4434	36738104
pex-linux-armv7l	9169991e2c08b604df1a6dabeff7957073df02fe43849ddc8fe91e48f6331828	33121611
pex-linux-riscv64	9eea8a6c09ce4e5c80b3f0d80b72eee5676bfc97787375aeb5e2c7111072657c	33246519
pex-linux-x86_64	b84cf285de5d7c88b26110633e79f69fb45439c4e912ed95dce9f6d7ee0eab18	42715759
pex-macos-aarch64	42b3bdcfd1ff1fdb16d6fc975f0cd2a30b366a6840fb9af5a5ed5967bc8e3400	24624526
pex-macos-x86_64	ccd5f13aae9c94b3e5a969584d066d84378016b6aa163c7b5be8b4bc66655c31	24783039
pex-musl-linux-aarch64	80e36b4b25a4b557a253424752d5f337d73e949df16007af668ee015ba12836a	35979819
pex-musl-linux-x86_64	875d887b2169fb6fdb6fbc9851eab1ea4dcfd813ac5b40997e34e06715ead7b2	36085384

pex 2.88.1

---

2.88.1

This release fixes .desktop files installed by --scie-icon and --scie-desktop-file PEX scies
to be more robust. They now work even if the original PEX scie they were installed by is (re)moved
as well as properly handling a SCIE_BASE with spaces in the path.

• Fix .desktop files installed by PEX scies. (#3099)

---

file	sha256	size
pex	680653e13f5a148f7cdad971b734f5a5f947804fe3680057856dd1ba4f30e98c	4981477
pex-linux-aarch64	9e715cfd29e495ccefee870cb46e7dce7a963d634806194c8b374bf66ac6bff4	36737645
pex-linux-armv7l	4db40ca5ba28153c344d45ac0adde94d8d2a865c5288131bb5f6e66d98b3dfe4	33121133
pex-linux-riscv64	3e601e596534ccb23bd21d9d9a1bda85394fa273799c97063b418a7f8ccd336d	33246055
pex-linux-x86_64	a4820770850dd3875ddd6394285db9c90dd7c8d3d305ae65d3a36284a7848335	42715298
pex-macos-aarch64	e46a1635122c54097bd0e767c1cdc043edcbb2604f41e53e95d088468616235f	24624058
pex-macos-x86_64	edbddf5941568d89c54799ee5af22582fbdbb8a07f55adeda3d86020a5cc8bfd	24782582
pex-musl-linux-aarch64	cb68bad0a08176b458e8ed77ced617fc1837d28d5d49da0e0a388a9195efbb3a	35979356
pex-musl-linux-x86_64	b9539e625bd9ca28a05485dde0e49a6a243683d5859961c587590571f06296e0	36084921

pex 2.88.0

---

2.88.0

This release adds support for --pip-version 26.0.1.

• Add support for --pip-version 26.0.1. (#3098)

---

file	sha256	size
pex	4adc09ff34a21b264fe078747ba3912ba9d95a6d8c219ba2c51e55a86bb95a04	4981166
pex-linux-aarch64	4836f9081dc256119925acf4092c2c5ac1baf676564c736c6fdd9a5e4f59c682	36607919
pex-linux-armv7l	c8082b42468b0351a41bfca21e31b68be597391563c625877febb6c15c904d46	32958667
pex-linux-riscv64	130827ce738195696ac05e2cbeac01830bff6029a276d854de3b79e1be109148	33091748
pex-linux-x86_64	21269f9620a79069498e27adf5e50aebae594f71c336d63be2d6168b320ce594	42543092
pex-macos-aarch64	f1041656707b6949d6cb9488caf0e7e6afb13df22da24c891b9196385a7f95d5	24457676
pex-macos-x86_64	b3ca4a7709a382e3ac1ab1f06b47a17ff00d87842f00ccc0f20eaa35ead3b339	24621692
pex-musl-linux-aarch64	163ec0ef6bbfa1770cdc5215860f38327a6c0d9deca592366056bda5768a4504	35850112
pex-musl-linux-x86_64	f6ee45f3841de1de67039f2c081dc46c2c9384aa58d793fdbb77494821e84482	35955708

pex 2.87.0

---

2.87.0

This release adds support for --pip-version 26.0.

• Add support for --pip-version 26.0. (#3091)

---

file	sha256	size
pex	5512aa085081cb90ae399a5190f2d7029225d39e0911d81d1e07b3060dc1536b	4981159
pex-linux-aarch64	c11d3d424f438cee46bd82fc714d1aea2cafa88f5d27cec1187cee501c974ad2	36607905
pex-linux-armv7l	1d6feacd251da125e77726ce5772eb53071949e3dc60189cbde7dec772717aaf	32958656
pex-linux-riscv64	a984976d1b614a5d5d4f6e1b425e2bd8183720422711ecfda1843210aae9737e	33091742
pex-linux-x86_64	d0ad2827288d0cc699183aee9cf98061475f7e03bacae27c370836fff1368c4b	42543081
pex-macos-aarch64	0d715afbee592a0d3c946dd330ea53366bff35ac13a79fc67e0a295d04c0ded3	24457669
pex-macos-x86_64	21ed002211a7e50d1cdb0c4db38861ebb9f73944733019ae326d126d900ba2ca	24621679
pex-musl-linux-aarch64	00a8f9b5d9e22ab3d84e15ed439c15802035c920d34d2b07d1e3947c3bb424c0	35850094
pex-musl-linux-x86_64	f7577933728d379f7c6f6db49220542070b2edc45ef286f374b68a48dbd7d711	35955693

pex 2.86.1

---

2.86.1

This release fixes a bug in constraints file requirement parsing. Previously, Pex tried to validate
constraints beyond its own needs, anticipating Pip's needs, leading to a failure to handle direct
reference URL requirements, including VCS requirements.

• Fix constraints file parsing for URL requirements. (#3090)

---

file	sha256	size
pex	91280d0a44c432630a8a80e43a51fcd9beb17acf93b4639ea903ff0330d371bc	4981147
pex-linux-aarch64	e948a57ba1453f39ea3ba6d565ec1221109a227ee7d92aef0c543b181098fe7f	36607893
pex-linux-armv7l	95aeedd3c355f3640fe982ae9f662abdd45f4f730b76ef8e6d5706833536a71a	32958640
pex-linux-riscv64	723970e67a472bc999961ea5f4105b266428db8a044182324a9fbdac03a472b6	33091720
pex-linux-x86_64	263b837d050c3f612e1bf2e395e4077adda9551df20598aed36a771fa0cbcfdc	42543067
pex-macos-aarch64	c2578632d995f94977161dc85e9353014f0a47c6bcf90d9bee39effeade67dd0	24457652
pex-macos-x86_64	f62e4dc1e1ca8a9d4a460b5e568095d0c24b688bbad1ac6835866bb67829e6c0	24621667
pex-musl-linux-aarch64	f53b4937a74fdf7be5484ee89b93e27aba5b8c65e7931dabab29f4d0f3c8e46b	35850086
pex-musl-linux-x86_64	7ab06c6b777d6ab68366b6404a87576b3faa10da7367ac76e5806fa9aacf9031	35955683