## Ipopt v0.6.5

[Diff since v0.6.4](jump-dev/Ipopt.jl@v0.6.4...v0.6.5)


**Closed issues:**
- building documentation (jump-dev#21)
- pardiso, ipopt, undefined symbol: sgetrf_ (jump-dev#177)
- Using MSVC binaries (jump-dev#202)
- Implement MOI solver-dependent callback (jump-dev#208)
- Ipopt fails to load an empty model (jump-dev#238)

**Merged pull requests:**
- Remove rst docs and replace with Markdown (jump-dev#237) (@odow)
- Add a solver-dependent callback wrapping the Ipopt intermediate-callback (jump-dev#241) (@odow)
- Clarify linear solver instructions (jump-dev#251) (@odow)
- Allow empty models to be created (jump-dev#252) (@odow)
- Add MA86 install instructions (jump-dev#253) (@odow)
- Update Project.toml (jump-dev#254) (@odow)

## Ipopt v0.6.4

[Diff since v0.6.3](jump-dev/Ipopt.jl@v0.6.3...v0.6.4)


**Closed issues:**
- (optionally) Sanity-check user functions (jump-dev#10)
- better interaction with local installs (jump-dev#25)
- How to check memory usage (jump-dev#69)
- Ipopt installation fails behind a firewall (jump-dev#78)
- Unconstrained Problem Crashes Julia (jump-dev#80)
- Compiling with pardiso on ubuntu (jump-dev#106)
- Ipopt find a wrong optimal solution (jump-dev#109)
- Ipopt.exe doesn't run on Windows/Julia 0.7 (jump-dev#119)
- Don't use reference BLAS (jump-dev#128)
- verify that users can unset check_derivatives_for_naninf (jump-dev#136)
- getobjbound and getsolvetime (jump-dev#148)
- Displaying wrong objective values (jump-dev#160)
- investigate obj_scaling_factor for maximizing (jump-dev#184)
- HSL linear solver on windows and admin privileges (jump-dev#192)
- BUG: Tried to obtain HSL_MA86 from shared library "libhsl.dylib" (jump-dev#197)
- Reason for the problem "INVALID MODEL" (jump-dev#207)
- v0.6.2 does not work with user-installed Ipopt (jump-dev#212)
- Trying to load MA97 when HSL is not available crashes Julia (jump-dev#213)
- Export the change of the objective value and the unscaled constraint violation inf_pr during iteration to .csv file? (jump-dev#216)
- maximum number of iterations Exceeded (jump-dev#218)
- exception_access_violation and julia exits (jump-dev#220)
- Wrong result for Ackleys Function (jump-dev#222)
- Using Ipopt.jl with SPRAL (jump-dev#223)
- Optimization problem crashes (jump-dev#224)
- Ipopt Install Error: "ASL_jll" not found (jump-dev#226)
- How to retrieve time taken by solver (jump-dev#227)
- Error linking IPOPT with HSL built on Windows (jump-dev#229)
- Ipopt fails tests on 1.5.3 (jump-dev#242)
- Ipopt throws errors that seem memory relevant (jump-dev#244)
- "Instance Error 2 in DMUMPS_F77" with @threads (jump-dev#245)

**Merged pull requests:**
- Add README section on INVALID_MODEL (jump-dev#217) (@odow)
- fix link to list of Ipopt options (jump-dev#219) (@dpo)
- Remove useless module prefix (jump-dev#221) (@blegat)
- Use obj_scaling_factor to set objective sense (jump-dev#225) (@odow)
- Fix error in add_constraint NaN handling for EqualTo (jump-dev#230) (@freemin7)
- Switch CI to Github actions (jump-dev#231) (@odow)
- Refactor Ipopt tests (jump-dev#232) (@odow)
- Style improvements for src/MOI_wrapper.jl (jump-dev#233) (@odow)
- Add test that naninf checked in derivatives (jump-dev#234) (@odow)
- Fix support for MOI.SolveTime (jump-dev#235) (@odow)
- Update README with linear solver instructions (jump-dev#236) (@odow)
- Style improvements to src/Ipopt.jl (jump-dev#239) (@odow)
- Deprecate passing keyword arguments to Ipopt.Optimizer (jump-dev#240) (@odow)
- [README] Clarify custom installation instructions (jump-dev#248) (@odow)
- Bump Ipopt_jll (jump-dev#249) (@odow)

## Ipopt v0.6.3

[Diff since v0.6.2](jump-dev/Ipopt.jl@v0.6.2...v0.6.3)


**Closed issues:**
- SolverName and SolveTime Support (jump-dev#115)
- Throw OptimizeNotCalled (jump-dev#174)
- Throw InvalidIndex (jump-dev#175)
- Silent is ignored (jump-dev#183)
- Project the starting point to variable bounds (jump-dev#185)
- cannot generate deps.jl (jump-dev#188)
- Ipopt build error on Mac OSX 10.14 (jump-dev#196)
- Accessing MOI.ObjectiveFunctionType (jump-dev#199)
- Copy test (jump-dev#203)
- Invalid model when constraint or objective involves term of decision variables such as x^a, where a is between (1, 2) (jump-dev#206)
- custom installation is ignored, still running the default version (jump-dev#209)
- MOI.is_valid not implemented (jump-dev#211)
- v0.6.2 does not work with user-installed Ipopt (jump-dev#212)

**Merged pull requests:**
- MOI.Silent suppresses output, project starting point into defined bounds (jump-dev#194) (@mewilhel)
- Update README.md (jump-dev#198) (@odow)
- fixes jump-dev#199 (jump-dev#200) (@Aks1996)
- minor change in view of jump-dev#199 (jump-dev#204) (@Aks1996)
- update URLs for migration to jump-dev (jump-dev#205) (@mlubin)
- Implement MOI.is_valid (jump-dev#214) (@blegat)
- Implement deleting and setting variable bounds (jump-dev#215) (@blegat)

## Ipopt v0.6.2

[Diff since v0.6.1](jump-dev/Ipopt.jl@v0.6.1...v0.6.2)


**Closed issues:**
- Wondering if I can use pardiso Windows dll as linear solver for Ipopt without getting recompiled Ipopt (jump-dev#83)
- Version considerations after MOI 0.9 (jump-dev#181)
- How to install Ipopt v0.2.6 in Juliapro v0.5.2.3/julia v"0.5.2"?? (jump-dev#186)
- Using HSL ma27 linear solver (jump-dev#189)
- Ipopt.jl is not thread safe? (segmentation fault was happened.) (jump-dev#190)

**Merged pull requests:**
- Install TagBot as a GitHub Action (jump-dev#187) (@JuliaTagBot)
- Use JLL artifacts (jump-dev#191) (@dpo)
- Use Ipopt_jll binaries on Julia pre v1.3 too (jump-dev#193) (@blegat)

See github.com/JuliaOpt/Ipopt.jl/releases/tag/v0.6.1 for release notes

See github.com/JuliaOpt/Ipopt.jl/releases/tag/v0.6.0 for release notes

test callback (jump-dev#157)

* test callback

* Text tweaks for style

Fix gradient bug when no objective set (jump-dev#159)

Accept nothing for VariablePrimalStart (jump-dev#156)

* Accept nothing for VariablePrimalStart

Closes jump-dev#155

* need UniversalFallback to pass the test

update for MOI 0.8.1 (jump-dev#154)