julia version bug in 1.5?

[AshtonSBradley]

In

julia> versioninfo()
Julia Version 1.5.0
Commit 96786e22cc (2020-08-01 23:44 UTC)
Platform Info:
  OS: macOS (x86_64-apple-darwin18.7.0)
  CPU: Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-9.0.1 (ORCJIT, skylake)
Environment:
  JULIA_NUM_THREADS = 8

and

(@v1.5) pkg> st CSVFiles
Status `~/.julia/environments/v1.5/Project.toml`
  [5d742f6a] CSVFiles v1.0.0

I get

julia> using CSVFiles
[ Info: Precompiling CSVFiles [5d742f6a-9f54-50ce-8119-2520741973ca]
ERROR: LoadError: LoadError: LoadError: Cannot read stream serialized with a newer version of Julia.
Got data version 11 > current version 10
Stacktrace:
 [1] error(::String) at /Applications/Julia-1.5.app/Contents/Resources/julia/lib/julia/sys.dylib:?
 [2] readheader(::Serialization.Serializer{IOStream}) at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.5/Serialization/src/Serialization.jl:715
 [3] handle_deserialize(::Serialization.Serializer{IOStream}, ::Int32) at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.5/Serialization/src/Serialization.jl:878
 [4] deserialize(::Serialization.Serializer{IOStream}) at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.5/Serialization/src/Serialization.jl:773
 [5] deserialize at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.5/Serialization/src/Serialization.jl:760 [inlined]
 [6] open(::typeof(Serialization.deserialize), ::String, ::Vararg{String,N} where N; kwargs::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}) at ./io.jl:325
 [7] open at ./io.jl:323 [inlined]
 [8] (::TimeZones.var"#3#4"{String})() at /Users/abradley/.julia/packages/TimeZones/cAGJs/src/types/timezone.jl:50
 [9] get!(::TimeZones.var"#3#4"{String}, ::Dict{String,Tuple{Dates.TimeZone,TimeZones.Class}}, ::String) at ./dict.jl:450
 [10] Dates.TimeZone(::String, ::TimeZones.Class) at /Users/abradley/.julia/packages/TimeZones/cAGJs/src/types/timezone.jl:46 (repeats 2 times)
 [11] @tz_str(::LineNumberNode, ::Module, ::Any) at /Users/abradley/.julia/packages/TimeZones/cAGJs/src/types/timezone.jl:86
 [12] include(::Function, ::Module, ::String) at /Applications/Julia-1.5.app/Contents/Resources/julia/lib/julia/sys.dylib:?
 [13] include at ./Base.jl:368 [inlined]
 [14] include(::String) at /Users/abradley/.julia/packages/Intervals/iTDy5/src/Intervals.jl:1
 [15] top-level scope at /Users/abradley/.julia/packages/Intervals/iTDy5/src/Intervals.jl:28
 [16] include(::Function, ::Module, ::String) at /Applications/Julia-1.5.app/Contents/Resources/julia/lib/julia/sys.dylib:? (repeats 2 times)
 [17] top-level scope at none:2
 [18] eval at ./boot.jl:331 [inlined]
 [19] eval(::Expr) at ./client.jl:467
 [20] top-level scope at ./none:3
in expression starting at /Users/abradley/.julia/packages/Intervals/iTDy5/src/interval.jl:153
in expression starting at /Users/abradley/.julia/packages/Intervals/iTDy5/src/interval.jl:152
in expression starting at /Users/abradley/.julia/packages/Intervals/iTDy5/src/Intervals.jl:28
ERROR: LoadError: Failed to precompile Intervals [d8418881-c3e1-53bb-8760-2df7ec849ed5] to /Users/abradley/.julia/compiled/v1.5/Intervals/ihXRn_X4bCo.ji.
Stacktrace:
 [1] error(::String) at /Applications/Julia-1.5.app/Contents/Resources/julia/lib/julia/sys.dylib:?
 [2] compilecache(::Base.PkgId, ::String) at /Applications/Julia-1.5.app/Contents/Resources/julia/lib/julia/sys.dylib:?
 [3] _require(::Base.PkgId) at /Applications/Julia-1.5.app/Contents/Resources/julia/lib/julia/sys.dylib:?
 [4] require(::Base.PkgId) at /Applications/Julia-1.5.app/Contents/Resources/julia/lib/julia/sys.dylib:? (repeats 2 times)
 [5] include(::Function, ::Module, ::String) at /Applications/Julia-1.5.app/Contents/Resources/julia/lib/julia/sys.dylib:? (repeats 2 times)
 [6] top-level scope at none:2
 [7] eval at ./boot.jl:331 [inlined]
 [8] eval(::Expr) at ./client.jl:467
 [9] top-level scope at ./none:3
in expression starting at /Users/abradley/.julia/packages/Polynomials/ZmARV/src/Polynomials.jl:4
ERROR: LoadError: Failed to precompile Polynomials [f27b6e38-b328-58d1-80ce-0feddd5e7a45] to /Users/abradley/.julia/compiled/v1.5/Polynomials/OaK78_X4bCo.ji.
Stacktrace:
 [1] error(::String) at /Applications/Julia-1.5.app/Contents/Resources/julia/lib/julia/sys.dylib:?
 [2] compilecache(::Base.PkgId, ::String) at /Applications/Julia-1.5.app/Contents/Resources/julia/lib/julia/sys.dylib:?
 [3] _require(::Base.PkgId) at /Applications/Julia-1.5.app/Contents/Resources/julia/lib/julia/sys.dylib:?
 [4] require(::Base.PkgId) at /Applications/Julia-1.5.app/Contents/Resources/julia/lib/julia/sys.dylib:? (repeats 2 times)
 [5] include(::Function, ::Module, ::String) at /Applications/Julia-1.5.app/Contents/Resources/julia/lib/julia/sys.dylib:? (repeats 2 times)
 [6] top-level scope at none:2
 [7] eval at ./boot.jl:331 [inlined]
 [8] eval(::Expr) at ./client.jl:467
 [9] top-level scope at ./none:3
in expression starting at /Users/abradley/.julia/packages/DoubleFloats/s9LZK/src/DoubleFloats.jl:44
ERROR: LoadError: Failed to precompile DoubleFloats [497a8b3b-efae-58df-a0af-a86822472b78] to /Users/abradley/.julia/compiled/v1.5/DoubleFloats/KzTCm_X4bCo.ji.
Stacktrace:
 [1] error(::String) at /Applications/Julia-1.5.app/Contents/Resources/julia/lib/julia/sys.dylib:?
 [2] compilecache(::Base.PkgId, ::String) at /Applications/Julia-1.5.app/Contents/Resources/julia/lib/julia/sys.dylib:?
 [3] _require(::Base.PkgId) at /Applications/Julia-1.5.app/Contents/Resources/julia/lib/julia/sys.dylib:?
 [4] require(::Base.PkgId) at /Applications/Julia-1.5.app/Contents/Resources/julia/lib/julia/sys.dylib:? (repeats 2 times)
 [5] include(::Function, ::Module, ::String) at /Applications/Julia-1.5.app/Contents/Resources/julia/lib/julia/sys.dylib:? (repeats 2 times)
 [6] top-level scope at none:2
 [7] eval at ./boot.jl:331 [inlined]
 [8] eval(::Expr) at ./client.jl:467
 [9] top-level scope at ./none:3
in expression starting at /Users/abradley/.julia/packages/TextParse/EETm2/src/TextParse.jl:3
ERROR: LoadError: Failed to precompile TextParse [e0df1984-e451-5cb5-8b61-797a481e67e3] to /Users/abradley/.julia/compiled/v1.5/TextParse/Ry2K3_X4bCo.ji.
Stacktrace:
 [1] error(::String) at /Applications/Julia-1.5.app/Contents/Resources/julia/lib/julia/sys.dylib:?
 [2] compilecache(::Base.PkgId, ::String) at /Applications/Julia-1.5.app/Contents/Resources/julia/lib/julia/sys.dylib:?
 [3] _require(::Base.PkgId) at /Applications/Julia-1.5.app/Contents/Resources/julia/lib/julia/sys.dylib:?
 [4] require(::Base.PkgId) at /Applications/Julia-1.5.app/Contents/Resources/julia/lib/julia/sys.dylib:? (repeats 2 times)
 [5] include(::Function, ::Module, ::String) at /Applications/Julia-1.5.app/Contents/Resources/julia/lib/julia/sys.dylib:? (repeats 2 times)
 [6] top-level scope at none:2
 [7] eval at ./boot.jl:331 [inlined]
 [8] eval(::Expr) at ./client.jl:467
 [9] top-level scope at ./none:3
in expression starting at /Users/abradley/.julia/packages/CSVFiles/C68zw/src/CSVFiles.jl:3
ERROR: Failed to precompile CSVFiles [5d742f6a-9f54-50ce-8119-2520741973ca] to /Users/abradley/.julia/compiled/v1.5/CSVFiles/kq3Uy_X4bCo.ji.
Stacktrace:
 [1] error(::String) at /Applications/Julia-1.5.app/Contents/Resources/julia/lib/julia/sys.dylib:?
 [2] compilecache(::Base.PkgId, ::String) at /Applications/Julia-1.5.app/Contents/Resources/julia/lib/julia/sys.dylib:?
 [3] _require(::Base.PkgId) at /Applications/Julia-1.5.app/Contents/Resources/julia/lib/julia/sys.dylib:?
 [4] require(::Base.PkgId) at /Applications/Julia-1.5.app/Contents/Resources/julia/lib/julia/sys.dylib:? (repeats 2 times

[AshtonSBradley]

nope, something wrong with my installation. Fresh .julia fixed it...